Home / 142,290.54-213,545.97-53,624.70

Finding the Fourth Proportional to 142,290.54, 213,545.97 and 53,624.70

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Solution

The fourth proportional to 142,290.54, 213,545.97 and 53,624.70 is: 80,478.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,290.54 : 213,545.97 = 53,624.70 : x
  2. Step 2: Convert to fraction form
    142,290.54/213,545.97 = 53,624.70/x
  3. Step 3: Cross multiply
    142,290.54x = 213,545.97 × 53,624.70
  4. Step 4: Simplify right side
    142,290.54x = 11,451,338,577.46
  5. Step 5: Solve for x
    x = 11,451,338,577.46/142,290.54
  6. Step 6: Final answer
    x = 80,478.57

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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.