Home / 487,112.96-730,670.08-132,126.72

Finding the Fourth Proportional to 487,112.96, 730,670.08 and 132,126.72

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Solution

The fourth proportional to 487,112.96, 730,670.08 and 132,126.72 is: 198,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,112.96 : 730,670.08 = 132,126.72 : x
  2. Step 2: Convert to fraction form
    487,112.96/730,670.08 = 132,126.72/x
  3. Step 3: Cross multiply
    487,112.96x = 730,670.08 × 132,126.72
  4. Step 4: Simplify right side
    487,112.96x = 96,541,041,072.54
  5. Step 5: Solve for x
    x = 96,541,041,072.54/487,112.96
  6. Step 6: Final answer
    x = 198,190.25

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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.