Home / 131,874.17-181,986.39-71,445.23

Finding the Fourth Proportional to 131,874.17, 181,986.39 and 71,445.23

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Solution

The fourth proportional to 131,874.17, 181,986.39 and 71,445.23 is: 98,594.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,874.17 : 181,986.39 = 71,445.23 : x
  2. Step 2: Convert to fraction form
    131,874.17/181,986.39 = 71,445.23/x
  3. Step 3: Cross multiply
    131,874.17x = 181,986.39 × 71,445.23
  4. Step 4: Simplify right side
    131,874.17x = 13,002,058,580.49
  5. Step 5: Solve for x
    x = 13,002,058,580.49/131,874.17
  6. Step 6: Final answer
    x = 98,594.43

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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.