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Finding the Fourth Proportional to 155,110.60, 232,838.70 and 85,126.60

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Solution

The fourth proportional to 155,110.60, 232,838.70 and 85,126.60 is: 127,784.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,110.60 : 232,838.70 = 85,126.60 : x
  2. Step 2: Convert to fraction form
    155,110.60/232,838.70 = 85,126.60/x
  3. Step 3: Cross multiply
    155,110.60x = 232,838.70 × 85,126.60
  4. Step 4: Simplify right side
    155,110.60x = 19,820,766,879.42
  5. Step 5: Solve for x
    x = 19,820,766,879.42/155,110.60
  6. Step 6: Final answer
    x = 127,784.73

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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.