Home / 139,545.20-209,317.80-132,328.10

Finding the Fourth Proportional to 139,545.20, 209,317.80 and 132,328.10

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Solution

The fourth proportional to 139,545.20, 209,317.80 and 132,328.10 is: 198,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,545.20 : 209,317.80 = 132,328.10 : x
  2. Step 2: Convert to fraction form
    139,545.20/209,317.80 = 132,328.10/x
  3. Step 3: Cross multiply
    139,545.20x = 209,317.80 × 132,328.10
  4. Step 4: Simplify right side
    139,545.20x = 27,698,626,770.18
  5. Step 5: Solve for x
    x = 27,698,626,770.18/139,545.20
  6. Step 6: Final answer
    x = 198,492.15

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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.