Home / 158,422.43-218,648.90-90,442.24

Finding the Fourth Proportional to 158,422.43, 218,648.90 and 90,442.24

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Solution

The fourth proportional to 158,422.43, 218,648.90 and 90,442.24 is: 124,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,422.43 : 218,648.90 = 90,442.24 : x
  2. Step 2: Convert to fraction form
    158,422.43/218,648.90 = 90,442.24/x
  3. Step 3: Cross multiply
    158,422.43x = 218,648.90 × 90,442.24
  4. Step 4: Simplify right side
    158,422.43x = 19,775,095,969.02
  5. Step 5: Solve for x
    x = 19,775,095,969.02/158,422.43
  6. Step 6: Final answer
    x = 124,825.10

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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.