Home / 102,082.06-140,876.13-61,803.10

Finding the Fourth Proportional to 102,082.06, 140,876.13 and 61,803.10

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Solution

The fourth proportional to 102,082.06, 140,876.13 and 61,803.10 is: 85,290.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,082.06 : 140,876.13 = 61,803.10 : x
  2. Step 2: Convert to fraction form
    102,082.06/140,876.13 = 61,803.10/x
  3. Step 3: Cross multiply
    102,082.06x = 140,876.13 × 61,803.10
  4. Step 4: Simplify right side
    102,082.06x = 8,706,581,550.00
  5. Step 5: Solve for x
    x = 8,706,581,550.00/102,082.06
  6. Step 6: Final answer
    x = 85,290.03

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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.