Home / 131,806.86-197,715.75-38,312.61

Finding the Fourth Proportional to 131,806.86, 197,715.75 and 38,312.61

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Solution

The fourth proportional to 131,806.86, 197,715.75 and 38,312.61 is: 57,470.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,806.86 : 197,715.75 = 38,312.61 : x
  2. Step 2: Convert to fraction form
    131,806.86/197,715.75 = 38,312.61/x
  3. Step 3: Cross multiply
    131,806.86x = 197,715.75 × 38,312.61
  4. Step 4: Simplify right side
    131,806.86x = 7,575,006,420.61
  5. Step 5: Solve for x
    x = 7,575,006,420.61/131,806.86
  6. Step 6: Final answer
    x = 57,470.50

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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.