Home / 117,956.20-176,502.30-86,852.20

Finding the Fourth Proportional to 117,956.20, 176,502.30 and 86,852.20

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Solution

The fourth proportional to 117,956.20, 176,502.30 and 86,852.20 is: 129,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,956.20 : 176,502.30 = 86,852.20 : x
  2. Step 2: Convert to fraction form
    117,956.20/176,502.30 = 86,852.20/x
  3. Step 3: Cross multiply
    117,956.20x = 176,502.30 × 86,852.20
  4. Step 4: Simplify right side
    117,956.20x = 15,329,613,060.06
  5. Step 5: Solve for x
    x = 15,329,613,060.06/117,956.20
  6. Step 6: Final answer
    x = 129,960.21

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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.