Home / 157,387.09-217,227.72-103,676.80

Finding the Fourth Proportional to 157,387.09, 217,227.72 and 103,676.80

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Solution

The fourth proportional to 157,387.09, 217,227.72 and 103,676.80 is: 143,096.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,387.09 : 217,227.72 = 103,676.80 : x
  2. Step 2: Convert to fraction form
    157,387.09/217,227.72 = 103,676.80/x
  3. Step 3: Cross multiply
    157,387.09x = 217,227.72 × 103,676.80
  4. Step 4: Simplify right side
    157,387.09x = 22,521,474,880.90
  5. Step 5: Solve for x
    x = 22,521,474,880.90/157,387.09
  6. Step 6: Final answer
    x = 143,096.08

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1.5x scale

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.