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Finding the Fourth Proportional to 103,332.96, 142,601.04 and 99,757.20

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Solution

The fourth proportional to 103,332.96, 142,601.04 and 99,757.20 is: 137,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,332.96 : 142,601.04 = 99,757.20 : x
  2. Step 2: Convert to fraction form
    103,332.96/142,601.04 = 99,757.20/x
  3. Step 3: Cross multiply
    103,332.96x = 142,601.04 × 99,757.20
  4. Step 4: Simplify right side
    103,332.96x = 14,225,480,467.49
  5. Step 5: Solve for x
    x = 14,225,480,467.49/103,332.96
  6. Step 6: Final answer
    x = 137,666.44

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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.