Home / 125,017.82-172,520.28-71,320.22

Finding the Fourth Proportional to 125,017.82, 172,520.28 and 71,320.22

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Solution

The fourth proportional to 125,017.82, 172,520.28 and 71,320.22 is: 98,419.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,017.82 : 172,520.28 = 71,320.22 : x
  2. Step 2: Convert to fraction form
    125,017.82/172,520.28 = 71,320.22/x
  3. Step 3: Cross multiply
    125,017.82x = 172,520.28 × 71,320.22
  4. Step 4: Simplify right side
    125,017.82x = 12,304,184,324.06
  5. Step 5: Solve for x
    x = 12,304,184,324.06/125,017.82
  6. Step 6: Final answer
    x = 98,419.44

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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.