Home / 130,769.24-180,548.19-100,498.73

Finding the Fourth Proportional to 130,769.24, 180,548.19 and 100,498.73

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Solution

The fourth proportional to 130,769.24, 180,548.19 and 100,498.73 is: 138,754.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,769.24 : 180,548.19 = 100,498.73 : x
  2. Step 2: Convert to fraction form
    130,769.24/180,548.19 = 100,498.73/x
  3. Step 3: Cross multiply
    130,769.24x = 180,548.19 × 100,498.73
  4. Step 4: Simplify right side
    130,769.24x = 18,144,862,896.06
  5. Step 5: Solve for x
    x = 18,144,862,896.06/130,769.24
  6. Step 6: Final answer
    x = 138,754.83

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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.