Home / 112,945.85-155,865.32-62,644.85

Finding the Fourth Proportional to 112,945.85, 155,865.32 and 62,644.85

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Solution

The fourth proportional to 112,945.85, 155,865.32 and 62,644.85 is: 86,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,945.85 : 155,865.32 = 62,644.85 : x
  2. Step 2: Convert to fraction form
    112,945.85/155,865.32 = 62,644.85/x
  3. Step 3: Cross multiply
    112,945.85x = 155,865.32 × 62,644.85
  4. Step 4: Simplify right side
    112,945.85x = 9,764,159,591.60
  5. Step 5: Solve for x
    x = 9,764,159,591.60/112,945.85
  6. Step 6: Final answer
    x = 86,449.92

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1.5x scale

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.