Home / 125,019.21-172,527.72-68,431.80

Finding the Fourth Proportional to 125,019.21, 172,527.72 and 68,431.80

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Solution

The fourth proportional to 125,019.21, 172,527.72 and 68,431.80 is: 94,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,019.21 : 172,527.72 = 68,431.80 : x
  2. Step 2: Convert to fraction form
    125,019.21/172,527.72 = 68,431.80/x
  3. Step 3: Cross multiply
    125,019.21x = 172,527.72 × 68,431.80
  4. Step 4: Simplify right side
    125,019.21x = 11,806,382,429.50
  5. Step 5: Solve for x
    x = 11,806,382,429.50/125,019.21
  6. Step 6: Final answer
    x = 94,436.55

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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.