Home / 143,887.18-215,793.95-42,661.56

Finding the Fourth Proportional to 143,887.18, 215,793.95 and 42,661.56

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Solution

The fourth proportional to 143,887.18, 215,793.95 and 42,661.56 is: 63,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,887.18 : 215,793.95 = 42,661.56 : x
  2. Step 2: Convert to fraction form
    143,887.18/215,793.95 = 42,661.56/x
  3. Step 3: Cross multiply
    143,887.18x = 215,793.95 × 42,661.56
  4. Step 4: Simplify right side
    143,887.18x = 9,206,106,545.56
  5. Step 5: Solve for x
    x = 9,206,106,545.56/143,887.18
  6. Step 6: Final answer
    x = 63,981.42

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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.