Home / 138,965.96-208,461.24-39,127.01

Finding the Fourth Proportional to 138,965.96, 208,461.24 and 39,127.01

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Solution

The fourth proportional to 138,965.96, 208,461.24 and 39,127.01 is: 58,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,965.96 : 208,461.24 = 39,127.01 : x
  2. Step 2: Convert to fraction form
    138,965.96/208,461.24 = 39,127.01/x
  3. Step 3: Cross multiply
    138,965.96x = 208,461.24 × 39,127.01
  4. Step 4: Simplify right side
    138,965.96x = 8,156,465,022.09
  5. Step 5: Solve for x
    x = 8,156,465,022.09/138,965.96
  6. Step 6: Final answer
    x = 58,693.98

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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.