Home / 129,741.16-194,631.90-63,140.20

Finding the Fourth Proportional to 129,741.16, 194,631.90 and 63,140.20

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Solution

The fourth proportional to 129,741.16, 194,631.90 and 63,140.20 is: 94,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,741.16 : 194,631.90 = 63,140.20 : x
  2. Step 2: Convert to fraction form
    129,741.16/194,631.90 = 63,140.20/x
  3. Step 3: Cross multiply
    129,741.16x = 194,631.90 × 63,140.20
  4. Step 4: Simplify right side
    129,741.16x = 12,289,097,092.38
  5. Step 5: Solve for x
    x = 12,289,097,092.38/129,741.16
  6. Step 6: Final answer
    x = 94,720.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.