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Finding the Fourth Proportional to 142,708.65, 213,772.32 and 67,601.13

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Solution

The fourth proportional to 142,708.65, 213,772.32 and 67,601.13 is: 101,264.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,708.65 : 213,772.32 = 67,601.13 : x
  2. Step 2: Convert to fraction form
    142,708.65/213,772.32 = 67,601.13/x
  3. Step 3: Cross multiply
    142,708.65x = 213,772.32 × 67,601.13
  4. Step 4: Simplify right side
    142,708.65x = 14,451,250,394.72
  5. Step 5: Solve for x
    x = 14,451,250,394.72/142,708.65
  6. Step 6: Final answer
    x = 101,264.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.