Home / 157,264.06-217,022.92-85,645.28

Finding the Fourth Proportional to 157,264.06, 217,022.92 and 85,645.28

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Solution

The fourth proportional to 157,264.06, 217,022.92 and 85,645.28 is: 118,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,264.06 : 217,022.92 = 85,645.28 : x
  2. Step 2: Convert to fraction form
    157,264.06/217,022.92 = 85,645.28/x
  3. Step 3: Cross multiply
    157,264.06x = 217,022.92 × 85,645.28
  4. Step 4: Simplify right side
    157,264.06x = 18,586,988,749.82
  5. Step 5: Solve for x
    x = 18,586,988,749.82/157,264.06
  6. Step 6: Final answer
    x = 118,189.68

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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.