Home / 136,243.68-204,451.17-72,259.35

Finding the Fourth Proportional to 136,243.68, 204,451.17 and 72,259.35

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Solution

The fourth proportional to 136,243.68, 204,451.17 and 72,259.35 is: 108,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,243.68 : 204,451.17 = 72,259.35 : x
  2. Step 2: Convert to fraction form
    136,243.68/204,451.17 = 72,259.35/x
  3. Step 3: Cross multiply
    136,243.68x = 204,451.17 × 72,259.35
  4. Step 4: Simplify right side
    136,243.68x = 14,773,508,650.94
  5. Step 5: Solve for x
    x = 14,773,508,650.94/136,243.68
  6. Step 6: Final answer
    x = 108,434.45

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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.