Home / 131,776.50-181,853.04-71,348.40

Finding the Fourth Proportional to 131,776.50, 181,853.04 and 71,348.40

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Solution

The fourth proportional to 131,776.50, 181,853.04 and 71,348.40 is: 98,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,776.50 : 181,853.04 = 71,348.40 : x
  2. Step 2: Convert to fraction form
    131,776.50/181,853.04 = 71,348.40/x
  3. Step 3: Cross multiply
    131,776.50x = 181,853.04 × 71,348.40
  4. Step 4: Simplify right side
    131,776.50x = 12,974,923,439.14
  5. Step 5: Solve for x
    x = 12,974,923,439.14/131,776.50
  6. Step 6: Final answer
    x = 98,461.59

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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.