Home / 120,350.16-180,488.27-83,149.29

Finding the Fourth Proportional to 120,350.16, 180,488.27 and 83,149.29

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Solution

The fourth proportional to 120,350.16, 180,488.27 and 83,149.29 is: 124,698.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,350.16 : 180,488.27 = 83,149.29 : x
  2. Step 2: Convert to fraction form
    120,350.16/180,488.27 = 83,149.29/x
  3. Step 3: Cross multiply
    120,350.16x = 180,488.27 × 83,149.29
  4. Step 4: Simplify right side
    120,350.16x = 15,007,471,088.08
  5. Step 5: Solve for x
    x = 15,007,471,088.08/120,350.16
  6. Step 6: Final answer
    x = 124,698.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.