Home / 125,335.15-173,073.71-85,198.23

Finding the Fourth Proportional to 125,335.15, 173,073.71 and 85,198.23

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Solution

The fourth proportional to 125,335.15, 173,073.71 and 85,198.23 is: 117,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,335.15 : 173,073.71 = 85,198.23 : x
  2. Step 2: Convert to fraction form
    125,335.15/173,073.71 = 85,198.23/x
  3. Step 3: Cross multiply
    125,335.15x = 173,073.71 × 85,198.23
  4. Step 4: Simplify right side
    125,335.15x = 14,745,573,964.53
  5. Step 5: Solve for x
    x = 14,745,573,964.53/125,335.15
  6. Step 6: Final answer
    x = 117,649.15

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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.