Home / 112,412,941.57-155,082,356.80-75,255,191.92

Finding the Fourth Proportional to 112,412,941.57, 155,082,356.80 and 75,255,191.92

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Solution

The fourth proportional to 112,412,941.57, 155,082,356.80 and 75,255,191.92 is: 103,820,364.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,412,941.57 : 155,082,356.80 = 75,255,191.92 : x
  2. Step 2: Convert to fraction form
    112,412,941.57/155,082,356.80 = 75,255,191.92/x
  3. Step 3: Cross multiply
    112,412,941.57x = 155,082,356.80 × 75,255,191.92
  4. Step 4: Simplify right side
    112,412,941.57x = 11,670,752,524,389,918
  5. Step 5: Solve for x
    x = 11,670,752,524,389,918/112,412,941.57
  6. Step 6: Final answer
    x = 103,820,364.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.