Home / 122,145,148.65-168,504,129.45-108,220,705.95

Finding the Fourth Proportional to 122,145,148.65, 168,504,129.45 and 108,220,705.95

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Solution

The fourth proportional to 122,145,148.65, 168,504,129.45 and 108,220,705.95 is: 149,294,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,145,148.65 : 168,504,129.45 = 108,220,705.95 : x
  2. Step 2: Convert to fraction form
    122,145,148.65/168,504,129.45 = 108,220,705.95/x
  3. Step 3: Cross multiply
    122,145,148.65x = 168,504,129.45 × 108,220,705.95
  4. Step 4: Simplify right side
    122,145,148.65x = 18,235,635,844,569,184
  5. Step 5: Solve for x
    x = 18,235,635,844,569,184/122,145,148.65
  6. Step 6: Final answer
    x = 149,294,802.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.