Home / 117,877.20-162,678.48-71,956.32

Finding the Fourth Proportional to 117,877.20, 162,678.48 and 71,956.32

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Solution

The fourth proportional to 117,877.20, 162,678.48 and 71,956.32 is: 99,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,877.20 : 162,678.48 = 71,956.32 : x
  2. Step 2: Convert to fraction form
    117,877.20/162,678.48 = 71,956.32/x
  3. Step 3: Cross multiply
    117,877.20x = 162,678.48 × 71,956.32
  4. Step 4: Simplify right side
    117,877.20x = 11,705,744,763.99
  5. Step 5: Solve for x
    x = 11,705,744,763.99/117,877.20
  6. Step 6: Final answer
    x = 99,304.57

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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.