Home / 139,545.21-209,302.25-38,351.02

Finding the Fourth Proportional to 139,545.21, 209,302.25 and 38,351.02

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Solution

The fourth proportional to 139,545.21, 209,302.25 and 38,351.02 is: 57,522.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,545.21 : 209,302.25 = 38,351.02 : x
  2. Step 2: Convert to fraction form
    139,545.21/209,302.25 = 38,351.02/x
  3. Step 3: Cross multiply
    139,545.21x = 209,302.25 × 38,351.02
  4. Step 4: Simplify right side
    139,545.21x = 8,026,954,348.42
  5. Step 5: Solve for x
    x = 8,026,954,348.42/139,545.21
  6. Step 6: Final answer
    x = 57,522.25

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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.