Home / 112,122.08-154,729.68-61,134.39

Finding the Fourth Proportional to 112,122.08, 154,729.68 and 61,134.39

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Solution

The fourth proportional to 112,122.08, 154,729.68 and 61,134.39 is: 84,366.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,122.08 : 154,729.68 = 61,134.39 : x
  2. Step 2: Convert to fraction form
    112,122.08/154,729.68 = 61,134.39/x
  3. Step 3: Cross multiply
    112,122.08x = 154,729.68 × 61,134.39
  4. Step 4: Simplify right side
    112,122.08x = 9,459,304,601.70
  5. Step 5: Solve for x
    x = 9,459,304,601.70/112,122.08
  6. Step 6: Final answer
    x = 84,366.12

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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.