Home / 149,470.62-206,269.35-85,812.30

Finding the Fourth Proportional to 149,470.62, 206,269.35 and 85,812.30

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Solution

The fourth proportional to 149,470.62, 206,269.35 and 85,812.30 is: 118,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,470.62 : 206,269.35 = 85,812.30 : x
  2. Step 2: Convert to fraction form
    149,470.62/206,269.35 = 85,812.30/x
  3. Step 3: Cross multiply
    149,470.62x = 206,269.35 × 85,812.30
  4. Step 4: Simplify right side
    149,470.62x = 17,700,447,343.01
  5. Step 5: Solve for x
    x = 17,700,447,343.01/149,470.62
  6. Step 6: Final answer
    x = 118,420.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.