Home / 130,780.01-180,489.26-77,082.41

Finding the Fourth Proportional to 130,780.01, 180,489.26 and 77,082.41

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Solution

The fourth proportional to 130,780.01, 180,489.26 and 77,082.41 is: 106,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,780.01 : 180,489.26 = 77,082.41 : x
  2. Step 2: Convert to fraction form
    130,780.01/180,489.26 = 77,082.41/x
  3. Step 3: Cross multiply
    130,780.01x = 180,489.26 × 77,082.41
  4. Step 4: Simplify right side
    130,780.01x = 13,912,546,754.50
  5. Step 5: Solve for x
    x = 13,912,546,754.50/130,780.01
  6. Step 6: Final answer
    x = 106,381.29

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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.