Home / 124,572.76-171,932.70-74,275

Finding the Fourth Proportional to 124,572.76, 171,932.70 and 74,275

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Solution

The fourth proportional to 124,572.76, 171,932.70 and 74,275 is: 102,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,572.76 : 171,932.70 = 74,275 : x
  2. Step 2: Convert to fraction form
    124,572.76/171,932.70 = 74,275/x
  3. Step 3: Cross multiply
    124,572.76x = 171,932.70 × 74,275
  4. Step 4: Simplify right side
    124,572.76x = 12,770,301,292.50
  5. Step 5: Solve for x
    x = 12,770,301,292.50/124,572.76
  6. Step 6: Final answer
    x = 102,512.79

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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.