Home / 157,581.21-217,465.16-85,963.89

Finding the Fourth Proportional to 157,581.21, 217,465.16 and 85,963.89

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Solution

The fourth proportional to 157,581.21, 217,465.16 and 85,963.89 is: 118,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,581.21 : 217,465.16 = 85,963.89 : x
  2. Step 2: Convert to fraction form
    157,581.21/217,465.16 = 85,963.89/x
  3. Step 3: Cross multiply
    157,581.21x = 217,465.16 × 85,963.89
  4. Step 4: Simplify right side
    157,581.21x = 18,694,150,663.25
  5. Step 5: Solve for x
    x = 18,694,150,663.25/157,581.21
  6. Step 6: Final answer
    x = 118,631.85

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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.