Home / 292,068.14-438,128.92-81,705.46

Finding the Fourth Proportional to 292,068.14, 438,128.92 and 81,705.46

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Solution

The fourth proportional to 292,068.14, 438,128.92 and 81,705.46 is: 122,565.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,068.14 : 438,128.92 = 81,705.46 : x
  2. Step 2: Convert to fraction form
    292,068.14/438,128.92 = 81,705.46/x
  3. Step 3: Cross multiply
    292,068.14x = 438,128.92 × 81,705.46
  4. Step 4: Simplify right side
    292,068.14x = 35,797,524,947.90
  5. Step 5: Solve for x
    x = 35,797,524,947.90/292,068.14
  6. Step 6: Final answer
    x = 122,565.66

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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.