Home / 124,177.16-171,291.84-90,146

Finding the Fourth Proportional to 124,177.16, 171,291.84 and 90,146

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Solution

The fourth proportional to 124,177.16, 171,291.84 and 90,146 is: 124,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,177.16 : 171,291.84 = 90,146 : x
  2. Step 2: Convert to fraction form
    124,177.16/171,291.84 = 90,146/x
  3. Step 3: Cross multiply
    124,177.16x = 171,291.84 × 90,146
  4. Step 4: Simplify right side
    124,177.16x = 15,441,274,208.64
  5. Step 5: Solve for x
    x = 15,441,274,208.64/124,177.16
  6. Step 6: Final answer
    x = 124,348.75

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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.