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Finding the Fourth Proportional to 125,700.06, 173,296.29 and 85,343.76

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Solution

The fourth proportional to 125,700.06, 173,296.29 and 85,343.76 is: 117,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,700.06 : 173,296.29 = 85,343.76 : x
  2. Step 2: Convert to fraction form
    125,700.06/173,296.29 = 85,343.76/x
  3. Step 3: Cross multiply
    125,700.06x = 173,296.29 × 85,343.76
  4. Step 4: Simplify right side
    125,700.06x = 14,789,756,982.65
  5. Step 5: Solve for x
    x = 14,789,756,982.65/125,700.06
  6. Step 6: Final answer
    x = 117,659.11

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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.