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Finding the Fourth Proportional to 149,818.80, 224,436.60 and 83,139.60

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Solution

The fourth proportional to 149,818.80, 224,436.60 and 83,139.60 is: 124,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,818.80 : 224,436.60 = 83,139.60 : x
  2. Step 2: Convert to fraction form
    149,818.80/224,436.60 = 83,139.60/x
  3. Step 3: Cross multiply
    149,818.80x = 224,436.60 × 83,139.60
  4. Step 4: Simplify right side
    149,818.80x = 18,659,569,149.36
  5. Step 5: Solve for x
    x = 18,659,569,149.36/149,818.80
  6. Step 6: Final answer
    x = 124,547.58

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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.