Home / 125,219.80-187,829.70-72,764.20

Finding the Fourth Proportional to 125,219.80, 187,829.70 and 72,764.20

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Solution

The fourth proportional to 125,219.80, 187,829.70 and 72,764.20 is: 109,146.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,219.80 : 187,829.70 = 72,764.20 : x
  2. Step 2: Convert to fraction form
    125,219.80/187,829.70 = 72,764.20/x
  3. Step 3: Cross multiply
    125,219.80x = 187,829.70 × 72,764.20
  4. Step 4: Simplify right side
    125,219.80x = 13,667,277,856.74
  5. Step 5: Solve for x
    x = 13,667,277,856.74/125,219.80
  6. Step 6: Final answer
    x = 109,146.30

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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.