Home / 115,275.78-159,093.45-67,569.48

Finding the Fourth Proportional to 115,275.78, 159,093.45 and 67,569.48

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Solution

The fourth proportional to 115,275.78, 159,093.45 and 67,569.48 is: 93,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,275.78 : 159,093.45 = 67,569.48 : x
  2. Step 2: Convert to fraction form
    115,275.78/159,093.45 = 67,569.48/x
  3. Step 3: Cross multiply
    115,275.78x = 159,093.45 × 67,569.48
  4. Step 4: Simplify right side
    115,275.78x = 10,749,861,687.91
  5. Step 5: Solve for x
    x = 10,749,861,687.91/115,275.78
  6. Step 6: Final answer
    x = 93,253.43

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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.