Home / 136,412.10-204,520.95-52,139.70

Finding the Fourth Proportional to 136,412.10, 204,520.95 and 52,139.70

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Solution

The fourth proportional to 136,412.10, 204,520.95 and 52,139.70 is: 78,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,412.10 : 204,520.95 = 52,139.70 : x
  2. Step 2: Convert to fraction form
    136,412.10/204,520.95 = 52,139.70/x
  3. Step 3: Cross multiply
    136,412.10x = 204,520.95 × 52,139.70
  4. Step 4: Simplify right side
    136,412.10x = 10,663,660,976.72
  5. Step 5: Solve for x
    x = 10,663,660,976.72/136,412.10
  6. Step 6: Final answer
    x = 78,172.40

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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.