Home / 157,300.22-217,073.97-85,680.06

Finding the Fourth Proportional to 157,300.22, 217,073.97 and 85,680.06

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Solution

The fourth proportional to 157,300.22, 217,073.97 and 85,680.06 is: 118,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,300.22 : 217,073.97 = 85,680.06 : x
  2. Step 2: Convert to fraction form
    157,300.22/217,073.97 = 85,680.06/x
  3. Step 3: Cross multiply
    157,300.22x = 217,073.97 × 85,680.06
  4. Step 4: Simplify right side
    157,300.22x = 18,598,910,774.04
  5. Step 5: Solve for x
    x = 18,598,910,774.04/157,300.22
  6. Step 6: Final answer
    x = 118,238.30

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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.