Home / 115,123.15-158,874.35-66,726.66

Finding the Fourth Proportional to 115,123.15, 158,874.35 and 66,726.66

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Solution

The fourth proportional to 115,123.15, 158,874.35 and 66,726.66 is: 92,085.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,123.15 : 158,874.35 = 66,726.66 : x
  2. Step 2: Convert to fraction form
    115,123.15/158,874.35 = 66,726.66/x
  3. Step 3: Cross multiply
    115,123.15x = 158,874.35 × 66,726.66
  4. Step 4: Simplify right side
    115,123.15x = 10,601,154,735.17
  5. Step 5: Solve for x
    x = 10,601,154,735.17/115,123.15
  6. Step 6: Final answer
    x = 92,085.34

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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.