Home / 157,850.88-217,837.44-90,787.20

Finding the Fourth Proportional to 157,850.88, 217,837.44 and 90,787.20

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Solution

The fourth proportional to 157,850.88, 217,837.44 and 90,787.20 is: 125,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,850.88 : 217,837.44 = 90,787.20 : x
  2. Step 2: Convert to fraction form
    157,850.88/217,837.44 = 90,787.20/x
  3. Step 3: Cross multiply
    157,850.88x = 217,837.44 × 90,787.20
  4. Step 4: Simplify right side
    157,850.88x = 19,776,851,232.77
  5. Step 5: Solve for x
    x = 19,776,851,232.77/157,850.88
  6. Step 6: Final answer
    x = 125,288.19

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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.