Home / 157,680.20-217,599.06-101,091.72

Finding the Fourth Proportional to 157,680.20, 217,599.06 and 101,091.72

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Solution

The fourth proportional to 157,680.20, 217,599.06 and 101,091.72 is: 139,506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,680.20 : 217,599.06 = 101,091.72 : x
  2. Step 2: Convert to fraction form
    157,680.20/217,599.06 = 101,091.72/x
  3. Step 3: Cross multiply
    157,680.20x = 217,599.06 × 101,091.72
  4. Step 4: Simplify right side
    157,680.20x = 21,997,463,245.78
  5. Step 5: Solve for x
    x = 21,997,463,245.78/157,680.20
  6. Step 6: Final answer
    x = 139,506.82

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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.