Home / 117,580.19-162,160.11-79,333.20

Finding the Fourth Proportional to 117,580.19, 162,160.11 and 79,333.20

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Solution

The fourth proportional to 117,580.19, 162,160.11 and 79,333.20 is: 109,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,580.19 : 162,160.11 = 79,333.20 : x
  2. Step 2: Convert to fraction form
    117,580.19/162,160.11 = 79,333.20/x
  3. Step 3: Cross multiply
    117,580.19x = 162,160.11 × 79,333.20
  4. Step 4: Simplify right side
    117,580.19x = 12,864,680,438.65
  5. Step 5: Solve for x
    x = 12,864,680,438.65/117,580.19
  6. Step 6: Final answer
    x = 109,411.98

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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.