Home / 112,426.85-155,151.09-61,441.74

Finding the Fourth Proportional to 112,426.85, 155,151.09 and 61,441.74

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Solution

The fourth proportional to 112,426.85, 155,151.09 and 61,441.74 is: 84,790.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,426.85 : 155,151.09 = 61,441.74 : x
  2. Step 2: Convert to fraction form
    112,426.85/155,151.09 = 61,441.74/x
  3. Step 3: Cross multiply
    112,426.85x = 155,151.09 × 61,441.74
  4. Step 4: Simplify right side
    112,426.85x = 9,532,752,932.50
  5. Step 5: Solve for x
    x = 9,532,752,932.50/112,426.85
  6. Step 6: Final answer
    x = 84,790.72

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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.