Home / 157,464.34-217,232.20-100,072.91

Finding the Fourth Proportional to 157,464.34, 217,232.20 and 100,072.91

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Solution

The fourth proportional to 157,464.34, 217,232.20 and 100,072.91 is: 138,057.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,464.34 : 217,232.20 = 100,072.91 : x
  2. Step 2: Convert to fraction form
    157,464.34/217,232.20 = 100,072.91/x
  3. Step 3: Cross multiply
    157,464.34x = 217,232.20 × 100,072.91
  4. Step 4: Simplify right side
    157,464.34x = 21,739,057,821.91
  5. Step 5: Solve for x
    x = 21,739,057,821.91/157,464.34
  6. Step 6: Final answer
    x = 138,057.02

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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.