Home / 112,121.01-154,699.88-66,769.92

Finding the Fourth Proportional to 112,121.01, 154,699.88 and 66,769.92

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Solution

The fourth proportional to 112,121.01, 154,699.88 and 66,769.92 is: 92,126.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.01 : 154,699.88 = 66,769.92 : x
  2. Step 2: Convert to fraction form
    112,121.01/154,699.88 = 66,769.92/x
  3. Step 3: Cross multiply
    112,121.01x = 154,699.88 × 66,769.92
  4. Step 4: Simplify right side
    112,121.01x = 10,329,298,277.76
  5. Step 5: Solve for x
    x = 10,329,298,277.76/112,121.01
  6. Step 6: Final answer
    x = 92,126.34

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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.