Home / 99,505.68-137,084.23-69,239.01

Finding the Fourth Proportional to 99,505.68, 137,084.23 and 69,239.01

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Solution

The fourth proportional to 99,505.68, 137,084.23 and 69,239.01 is: 95,387.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,505.68 : 137,084.23 = 69,239.01 : x
  2. Step 2: Convert to fraction form
    99,505.68/137,084.23 = 69,239.01/x
  3. Step 3: Cross multiply
    99,505.68x = 137,084.23 × 69,239.01
  4. Step 4: Simplify right side
    99,505.68x = 9,491,576,371.81
  5. Step 5: Solve for x
    x = 9,491,576,371.81/99,505.68
  6. Step 6: Final answer
    x = 95,387.28

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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.