Home / 138,737.45-208,111.95-43,965.53

Finding the Fourth Proportional to 138,737.45, 208,111.95 and 43,965.53

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Solution

The fourth proportional to 138,737.45, 208,111.95 and 43,965.53 is: 65,950.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,737.45 : 208,111.95 = 43,965.53 : x
  2. Step 2: Convert to fraction form
    138,737.45/208,111.95 = 43,965.53/x
  3. Step 3: Cross multiply
    138,737.45x = 208,111.95 × 43,965.53
  4. Step 4: Simplify right side
    138,737.45x = 9,149,751,140.52
  5. Step 5: Solve for x
    x = 9,149,751,140.52/138,737.45
  6. Step 6: Final answer
    x = 65,950.12

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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.