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Finding the Fourth Proportional to 100,152.87, 138,210.73 and 59,864.68

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Solution

The fourth proportional to 100,152.87, 138,210.73 and 59,864.68 is: 82,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,152.87 : 138,210.73 = 59,864.68 : x
  2. Step 2: Convert to fraction form
    100,152.87/138,210.73 = 59,864.68/x
  3. Step 3: Cross multiply
    100,152.87x = 138,210.73 × 59,864.68
  4. Step 4: Simplify right side
    100,152.87x = 8,273,941,124.02
  5. Step 5: Solve for x
    x = 8,273,941,124.02/100,152.87
  6. Step 6: Final answer
    x = 82,613.12

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1.5x scale

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.