Home / 136,948.80-205,423.20-124,701.60

Finding the Fourth Proportional to 136,948.80, 205,423.20 and 124,701.60

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Solution

The fourth proportional to 136,948.80, 205,423.20 and 124,701.60 is: 187,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,948.80 : 205,423.20 = 124,701.60 : x
  2. Step 2: Convert to fraction form
    136,948.80/205,423.20 = 124,701.60/x
  3. Step 3: Cross multiply
    136,948.80x = 205,423.20 × 124,701.60
  4. Step 4: Simplify right side
    136,948.80x = 25,616,601,717.12
  5. Step 5: Solve for x
    x = 25,616,601,717.12/136,948.80
  6. Step 6: Final answer
    x = 187,052.40

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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.