Home / 158,142.64-218,242.29-86,522.66

Finding the Fourth Proportional to 158,142.64, 218,242.29 and 86,522.66

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Solution

The fourth proportional to 158,142.64, 218,242.29 and 86,522.66 is: 119,404.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,142.64 : 218,242.29 = 86,522.66 : x
  2. Step 2: Convert to fraction form
    158,142.64/218,242.29 = 86,522.66/x
  3. Step 3: Cross multiply
    158,142.64x = 218,242.29 × 86,522.66
  4. Step 4: Simplify right side
    158,142.64x = 18,882,904,000.90
  5. Step 5: Solve for x
    x = 18,882,904,000.90/158,142.64
  6. Step 6: Final answer
    x = 119,404.26

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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.