Home / 112,887.76-155,769.70-67,555.20

Finding the Fourth Proportional to 112,887.76, 155,769.70 and 67,555.20

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Solution

The fourth proportional to 112,887.76, 155,769.70 and 67,555.20 is: 93,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,887.76 : 155,769.70 = 67,555.20 : x
  2. Step 2: Convert to fraction form
    112,887.76/155,769.70 = 67,555.20/x
  3. Step 3: Cross multiply
    112,887.76x = 155,769.70 × 67,555.20
  4. Step 4: Simplify right side
    112,887.76x = 10,523,053,237.44
  5. Step 5: Solve for x
    x = 10,523,053,237.44/112,887.76
  6. Step 6: Final answer
    x = 93,216.95

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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.