Home / 134,070.18-200,872.98-81,369.24

Finding the Fourth Proportional to 134,070.18, 200,872.98 and 81,369.24

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Solution

The fourth proportional to 134,070.18, 200,872.98 and 81,369.24 is: 121,912.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,070.18 : 200,872.98 = 81,369.24 : x
  2. Step 2: Convert to fraction form
    134,070.18/200,872.98 = 81,369.24/x
  3. Step 3: Cross multiply
    134,070.18x = 200,872.98 × 81,369.24
  4. Step 4: Simplify right side
    134,070.18x = 16,344,881,719.14
  5. Step 5: Solve for x
    x = 16,344,881,719.14/134,070.18
  6. Step 6: Final answer
    x = 121,912.88

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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.