Home / 131,971.34-182,191.11-103,229.93

Finding the Fourth Proportional to 131,971.34, 182,191.11 and 103,229.93

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Solution

The fourth proportional to 131,971.34, 182,191.11 and 103,229.93 is: 142,512.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,971.34 : 182,191.11 = 103,229.93 : x
  2. Step 2: Convert to fraction form
    131,971.34/182,191.11 = 103,229.93/x
  3. Step 3: Cross multiply
    131,971.34x = 182,191.11 × 103,229.93
  4. Step 4: Simplify right side
    131,971.34x = 18,807,575,531.92
  5. Step 5: Solve for x
    x = 18,807,575,531.92/131,971.34
  6. Step 6: Final answer
    x = 142,512.58

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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.