Home / 282,480.03-423,719.85-72,117.90

Finding the Fourth Proportional to 282,480.03, 423,719.85 and 72,117.90

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Solution

The fourth proportional to 282,480.03, 423,719.85 and 72,117.90 is: 108,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,480.03 : 423,719.85 = 72,117.90 : x
  2. Step 2: Convert to fraction form
    282,480.03/423,719.85 = 72,117.90/x
  3. Step 3: Cross multiply
    282,480.03x = 423,719.85 × 72,117.90
  4. Step 4: Simplify right side
    282,480.03x = 30,557,785,770.32
  5. Step 5: Solve for x
    x = 30,557,785,770.32/282,480.03
  6. Step 6: Final answer
    x = 108,176.80

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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.