Home / 125,200.26-187,742.04-72,624.78

Finding the Fourth Proportional to 125,200.26, 187,742.04 and 72,624.78

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Solution

The fourth proportional to 125,200.26, 187,742.04 and 72,624.78 is: 108,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,200.26 : 187,742.04 = 72,624.78 : x
  2. Step 2: Convert to fraction form
    125,200.26/187,742.04 = 72,624.78/x
  3. Step 3: Cross multiply
    125,200.26x = 187,742.04 × 72,624.78
  4. Step 4: Simplify right side
    125,200.26x = 13,634,724,351.75
  5. Step 5: Solve for x
    x = 13,634,724,351.75/125,200.26
  6. Step 6: Final answer
    x = 108,903.32

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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.