Home / 125,158.21-187,716.55-45,180.84

Finding the Fourth Proportional to 125,158.21, 187,716.55 and 45,180.84

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Solution

The fourth proportional to 125,158.21, 187,716.55 and 45,180.84 is: 67,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,158.21 : 187,716.55 = 45,180.84 : x
  2. Step 2: Convert to fraction form
    125,158.21/187,716.55 = 45,180.84/x
  3. Step 3: Cross multiply
    125,158.21x = 187,716.55 × 45,180.84
  4. Step 4: Simplify right side
    125,158.21x = 8,481,191,094.23
  5. Step 5: Solve for x
    x = 8,481,191,094.23/125,158.21
  6. Step 6: Final answer
    x = 67,763.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.