Home / 122,318.46-168,798.78-67,870.08

Finding the Fourth Proportional to 122,318.46, 168,798.78 and 67,870.08

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Solution

The fourth proportional to 122,318.46, 168,798.78 and 67,870.08 is: 93,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,318.46 : 168,798.78 = 67,870.08 : x
  2. Step 2: Convert to fraction form
    122,318.46/168,798.78 = 67,870.08/x
  3. Step 3: Cross multiply
    122,318.46x = 168,798.78 × 67,870.08
  4. Step 4: Simplify right side
    122,318.46x = 11,456,386,702.50
  5. Step 5: Solve for x
    x = 11,456,386,702.50/122,318.46
  6. Step 6: Final answer
    x = 93,660.32

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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.