Home / 100,434.17-138,664.08-62,234.25

Finding the Fourth Proportional to 100,434.17, 138,664.08 and 62,234.25

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Solution

The fourth proportional to 100,434.17, 138,664.08 and 62,234.25 is: 85,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,434.17 : 138,664.08 = 62,234.25 : x
  2. Step 2: Convert to fraction form
    100,434.17/138,664.08 = 62,234.25/x
  3. Step 3: Cross multiply
    100,434.17x = 138,664.08 × 62,234.25
  4. Step 4: Simplify right side
    100,434.17x = 8,629,655,020.74
  5. Step 5: Solve for x
    x = 8,629,655,020.74/100,434.17
  6. Step 6: Final answer
    x = 85,923.50

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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.