Home / 115,542.17-159,432.34-64,548.56

Finding the Fourth Proportional to 115,542.17, 159,432.34 and 64,548.56

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Solution

The fourth proportional to 115,542.17, 159,432.34 and 64,548.56 is: 89,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,542.17 : 159,432.34 = 64,548.56 : x
  2. Step 2: Convert to fraction form
    115,542.17/159,432.34 = 64,548.56/x
  3. Step 3: Cross multiply
    115,542.17x = 159,432.34 × 64,548.56
  4. Step 4: Simplify right side
    115,542.17x = 10,291,127,559.29
  5. Step 5: Solve for x
    x = 10,291,127,559.29/115,542.17
  6. Step 6: Final answer
    x = 89,068.15

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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.