Home / 115,440.16-159,306.60-64,449.88

Finding the Fourth Proportional to 115,440.16, 159,306.60 and 64,449.88

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Solution

The fourth proportional to 115,440.16, 159,306.60 and 64,449.88 is: 88,940.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.16 : 159,306.60 = 64,449.88 : x
  2. Step 2: Convert to fraction form
    115,440.16/159,306.60 = 64,449.88/x
  3. Step 3: Cross multiply
    115,440.16x = 159,306.60 × 64,449.88
  4. Step 4: Simplify right side
    115,440.16x = 10,267,291,253.21
  5. Step 5: Solve for x
    x = 10,267,291,253.21/115,440.16
  6. Step 6: Final answer
    x = 88,940.38

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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.