Home / 99,391.05-137,160.54-54,070.02

Finding the Fourth Proportional to 99,391.05, 137,160.54 and 54,070.02

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Solution

The fourth proportional to 99,391.05, 137,160.54 and 54,070.02 is: 74,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,391.05 : 137,160.54 = 54,070.02 : x
  2. Step 2: Convert to fraction form
    99,391.05/137,160.54 = 54,070.02/x
  3. Step 3: Cross multiply
    99,391.05x = 137,160.54 × 54,070.02
  4. Step 4: Simplify right side
    99,391.05x = 7,416,273,141.01
  5. Step 5: Solve for x
    x = 7,416,273,141.01/99,391.05
  6. Step 6: Final answer
    x = 74,617.11

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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.