Home / 158,270.93-218,414.52-86,657.62

Finding the Fourth Proportional to 158,270.93, 218,414.52 and 86,657.62

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Solution

The fourth proportional to 158,270.93, 218,414.52 and 86,657.62 is: 119,587.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,270.93 : 218,414.52 = 86,657.62 : x
  2. Step 2: Convert to fraction form
    158,270.93/218,414.52 = 86,657.62/x
  3. Step 3: Cross multiply
    158,270.93x = 218,414.52 × 86,657.62
  4. Step 4: Simplify right side
    158,270.93x = 18,927,281,384.57
  5. Step 5: Solve for x
    x = 18,927,281,384.57/158,270.93
  6. Step 6: Final answer
    x = 119,587.86

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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.