Home / 157,578.40-217,449.52-89,586

Finding the Fourth Proportional to 157,578.40, 217,449.52 and 89,586

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Solution

The fourth proportional to 157,578.40, 217,449.52 and 89,586 is: 123,623.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,578.40 : 217,449.52 = 89,586 : x
  2. Step 2: Convert to fraction form
    157,578.40/217,449.52 = 89,586/x
  3. Step 3: Cross multiply
    157,578.40x = 217,449.52 × 89,586
  4. Step 4: Simplify right side
    157,578.40x = 19,480,432,698.72
  5. Step 5: Solve for x
    x = 19,480,432,698.72/157,578.40
  6. Step 6: Final answer
    x = 123,623.75

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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.