Home / 125,418.12-173,065.55-74,422.07

Finding the Fourth Proportional to 125,418.12, 173,065.55 and 74,422.07

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Solution

The fourth proportional to 125,418.12, 173,065.55 and 74,422.07 is: 102,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,418.12 : 173,065.55 = 74,422.07 : x
  2. Step 2: Convert to fraction form
    125,418.12/173,065.55 = 74,422.07/x
  3. Step 3: Cross multiply
    125,418.12x = 173,065.55 × 74,422.07
  4. Step 4: Simplify right side
    125,418.12x = 12,879,896,476.69
  5. Step 5: Solve for x
    x = 12,879,896,476.69/125,418.12
  6. Step 6: Final answer
    x = 102,695.66

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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.