Home / 99,390.26-137,157.43-74,010.14

Finding the Fourth Proportional to 99,390.26, 137,157.43 and 74,010.14

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Solution

The fourth proportional to 99,390.26, 137,157.43 and 74,010.14 is: 102,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,390.26 : 137,157.43 = 74,010.14 : x
  2. Step 2: Convert to fraction form
    99,390.26/137,157.43 = 74,010.14/x
  3. Step 3: Cross multiply
    99,390.26x = 137,157.43 × 74,010.14
  4. Step 4: Simplify right side
    99,390.26x = 10,151,039,725.53
  5. Step 5: Solve for x
    x = 10,151,039,725.53/99,390.26
  6. Step 6: Final answer
    x = 102,133.15

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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.