Home / 124,305.12-171,539.52-67,715.28

Finding the Fourth Proportional to 124,305.12, 171,539.52 and 67,715.28

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Solution

The fourth proportional to 124,305.12, 171,539.52 and 67,715.28 is: 93,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,305.12 : 171,539.52 = 67,715.28 : x
  2. Step 2: Convert to fraction form
    124,305.12/171,539.52 = 67,715.28/x
  3. Step 3: Cross multiply
    124,305.12x = 171,539.52 × 67,715.28
  4. Step 4: Simplify right side
    124,305.12x = 11,615,846,627.87
  5. Step 5: Solve for x
    x = 11,615,846,627.87/124,305.12
  6. Step 6: Final answer
    x = 93,446.24

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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.