Home / 112,275.13-168,534.02-99,874.57

Finding the Fourth Proportional to 112,275.13, 168,534.02 and 99,874.57

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Solution

The fourth proportional to 112,275.13, 168,534.02 and 99,874.57 is: 149,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,275.13 : 168,534.02 = 99,874.57 : x
  2. Step 2: Convert to fraction form
    112,275.13/168,534.02 = 99,874.57/x
  3. Step 3: Cross multiply
    112,275.13x = 168,534.02 × 99,874.57
  4. Step 4: Simplify right side
    112,275.13x = 16,832,262,777.87
  5. Step 5: Solve for x
    x = 16,832,262,777.87/112,275.13
  6. Step 6: Final answer
    x = 149,919.78

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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.