Home / 134,151.20-201,356.40-81,663.20

Finding the Fourth Proportional to 134,151.20, 201,356.40 and 81,663.20

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Solution

The fourth proportional to 134,151.20, 201,356.40 and 81,663.20 is: 122,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,151.20 : 201,356.40 = 81,663.20 : x
  2. Step 2: Convert to fraction form
    134,151.20/201,356.40 = 81,663.20/x
  3. Step 3: Cross multiply
    134,151.20x = 201,356.40 × 81,663.20
  4. Step 4: Simplify right side
    134,151.20x = 16,443,407,964.48
  5. Step 5: Solve for x
    x = 16,443,407,964.48/134,151.20
  6. Step 6: Final answer
    x = 122,573.69

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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.