Home / 99,812.85-137,740.93-54,490.17

Finding the Fourth Proportional to 99,812.85, 137,740.93 and 54,490.17

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Solution

The fourth proportional to 99,812.85, 137,740.93 and 54,490.17 is: 75,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,812.85 : 137,740.93 = 54,490.17 : x
  2. Step 2: Convert to fraction form
    99,812.85/137,740.93 = 54,490.17/x
  3. Step 3: Cross multiply
    99,812.85x = 137,740.93 × 54,490.17
  4. Step 4: Simplify right side
    99,812.85x = 7,505,526,691.66
  5. Step 5: Solve for x
    x = 7,505,526,691.66/99,812.85
  6. Step 6: Final answer
    x = 75,196.00

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1.5x scale

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.