Home / 155,195.72-232,895.50-85,124.20

Finding the Fourth Proportional to 155,195.72, 232,895.50 and 85,124.20

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Solution

The fourth proportional to 155,195.72, 232,895.50 and 85,124.20 is: 127,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,195.72 : 232,895.50 = 85,124.20 : x
  2. Step 2: Convert to fraction form
    155,195.72/232,895.50 = 85,124.20/x
  3. Step 3: Cross multiply
    155,195.72x = 232,895.50 × 85,124.20
  4. Step 4: Simplify right side
    155,195.72x = 19,825,043,121.10
  5. Step 5: Solve for x
    x = 19,825,043,121.10/155,195.72
  6. Step 6: Final answer
    x = 127,742.20

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1.5x scale

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.