Home / 138,961.95-208,455.23-39,123.01

Finding the Fourth Proportional to 138,961.95, 208,455.23 and 39,123.01

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Solution

The fourth proportional to 138,961.95, 208,455.23 and 39,123.01 is: 58,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,961.95 : 208,455.23 = 39,123.01 : x
  2. Step 2: Convert to fraction form
    138,961.95/208,455.23 = 39,123.01/x
  3. Step 3: Cross multiply
    138,961.95x = 208,455.23 × 39,123.01
  4. Step 4: Simplify right side
    138,961.95x = 8,155,396,047.84
  5. Step 5: Solve for x
    x = 8,155,396,047.84/138,961.95
  6. Step 6: Final answer
    x = 58,687.98

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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.