Home / 155,931.45-215,136.27-95,439.03

Finding the Fourth Proportional to 155,931.45, 215,136.27 and 95,439.03

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Solution

The fourth proportional to 155,931.45, 215,136.27 and 95,439.03 is: 131,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,931.45 : 215,136.27 = 95,439.03 : x
  2. Step 2: Convert to fraction form
    155,931.45/215,136.27 = 95,439.03/x
  3. Step 3: Cross multiply
    155,931.45x = 215,136.27 × 95,439.03
  4. Step 4: Simplify right side
    155,931.45x = 20,532,396,926.62
  5. Step 5: Solve for x
    x = 20,532,396,926.62/155,931.45
  6. Step 6: Final answer
    x = 131,675.79

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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.