Home / 112,149.55-154,769.84-64,412.47

Finding the Fourth Proportional to 112,149.55, 154,769.84 and 64,412.47

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Solution

The fourth proportional to 112,149.55, 154,769.84 and 64,412.47 is: 88,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,149.55 : 154,769.84 = 64,412.47 : x
  2. Step 2: Convert to fraction form
    112,149.55/154,769.84 = 64,412.47/x
  3. Step 3: Cross multiply
    112,149.55x = 154,769.84 × 64,412.47
  4. Step 4: Simplify right side
    112,149.55x = 9,969,107,675.90
  5. Step 5: Solve for x
    x = 9,969,107,675.90/112,149.55
  6. Step 6: Final answer
    x = 88,891.20

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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.