Home / 143,981.15-198,601.47-87,392.52

Finding the Fourth Proportional to 143,981.15, 198,601.47 and 87,392.52

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Solution

The fourth proportional to 143,981.15, 198,601.47 and 87,392.52 is: 120,545.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981.15 : 198,601.47 = 87,392.52 : x
  2. Step 2: Convert to fraction form
    143,981.15/198,601.47 = 87,392.52/x
  3. Step 3: Cross multiply
    143,981.15x = 198,601.47 × 87,392.52
  4. Step 4: Simplify right side
    143,981.15x = 17,356,282,939.00
  5. Step 5: Solve for x
    x = 17,356,282,939.00/143,981.15
  6. Step 6: Final answer
    x = 120,545.53

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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.