Home / 117,330.48-162,049.70-79,539.12

Finding the Fourth Proportional to 117,330.48, 162,049.70 and 79,539.12

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Solution

The fourth proportional to 117,330.48, 162,049.70 and 79,539.12 is: 109,854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,330.48 : 162,049.70 = 79,539.12 : x
  2. Step 2: Convert to fraction form
    117,330.48/162,049.70 = 79,539.12/x
  3. Step 3: Cross multiply
    117,330.48x = 162,049.70 × 79,539.12
  4. Step 4: Simplify right side
    117,330.48x = 12,889,290,733.11
  5. Step 5: Solve for x
    x = 12,889,290,733.11/117,330.48
  6. Step 6: Final answer
    x = 109,854.58

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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.