Home / 147,121.25-203,048.00-85,887.52

Finding the Fourth Proportional to 147,121.25, 203,048.00 and 85,887.52

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Solution

The fourth proportional to 147,121.25, 203,048.00 and 85,887.52 is: 118,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,121.25 : 203,048.00 = 85,887.52 : x
  2. Step 2: Convert to fraction form
    147,121.25/203,048.00 = 85,887.52/x
  3. Step 3: Cross multiply
    147,121.25x = 203,048.00 × 85,887.52
  4. Step 4: Simplify right side
    147,121.25x = 17,439,288,545.98
  5. Step 5: Solve for x
    x = 17,439,288,545.98/147,121.25
  6. Step 6: Final answer
    x = 118,536.85

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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.