Home / 113,122.26-155,979.34-72,230.83

Finding the Fourth Proportional to 113,122.26, 155,979.34 and 72,230.83

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Solution

The fourth proportional to 113,122.26, 155,979.34 and 72,230.83 is: 99,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,122.26 : 155,979.34 = 72,230.83 : x
  2. Step 2: Convert to fraction form
    113,122.26/155,979.34 = 72,230.83/x
  3. Step 3: Cross multiply
    113,122.26x = 155,979.34 × 72,230.83
  4. Step 4: Simplify right side
    113,122.26x = 11,266,516,620.53
  5. Step 5: Solve for x
    x = 11,266,516,620.53/113,122.26
  6. Step 6: Final answer
    x = 99,595.93

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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.