Home / 115,440.90-159,306.89-64,454.41

Finding the Fourth Proportional to 115,440.90, 159,306.89 and 64,454.41

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Solution

The fourth proportional to 115,440.90, 159,306.89 and 64,454.41 is: 88,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.90 : 159,306.89 = 64,454.41 : x
  2. Step 2: Convert to fraction form
    115,440.90/159,306.89 = 64,454.41/x
  3. Step 3: Cross multiply
    115,440.90x = 159,306.89 × 64,454.41
  4. Step 4: Simplify right side
    115,440.90x = 10,268,031,281.61
  5. Step 5: Solve for x
    x = 10,268,031,281.61/115,440.90
  6. Step 6: Final answer
    x = 88,946.22

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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.