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Finding the Fourth Proportional to 157,398.95, 217,185.72 and 88,474.82

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Solution

The fourth proportional to 157,398.95, 217,185.72 and 88,474.82 is: 122,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,398.95 : 217,185.72 = 88,474.82 : x
  2. Step 2: Convert to fraction form
    157,398.95/217,185.72 = 88,474.82/x
  3. Step 3: Cross multiply
    157,398.95x = 217,185.72 × 88,474.82
  4. Step 4: Simplify right side
    157,398.95x = 19,215,467,483.57
  5. Step 5: Solve for x
    x = 19,215,467,483.57/157,398.95
  6. Step 6: Final answer
    x = 122,081.29

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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.