Home / 138,840.77-208,218.02-50,082.74

Finding the Fourth Proportional to 138,840.77, 208,218.02 and 50,082.74

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Solution

The fourth proportional to 138,840.77, 208,218.02 and 50,082.74 is: 75,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,840.77 : 208,218.02 = 50,082.74 : x
  2. Step 2: Convert to fraction form
    138,840.77/208,218.02 = 50,082.74/x
  3. Step 3: Cross multiply
    138,840.77x = 208,218.02 × 50,082.74
  4. Step 4: Simplify right side
    138,840.77x = 10,428,127,667.47
  5. Step 5: Solve for x
    x = 10,428,127,667.47/138,840.77
  6. Step 6: Final answer
    x = 75,108.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.