Home / 124,624.60-187,131.30-72,136.60

Finding the Fourth Proportional to 124,624.60, 187,131.30 and 72,136.60

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Solution

The fourth proportional to 124,624.60, 187,131.30 and 72,136.60 is: 108,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,624.60 : 187,131.30 = 72,136.60 : x
  2. Step 2: Convert to fraction form
    124,624.60/187,131.30 = 72,136.60/x
  3. Step 3: Cross multiply
    124,624.60x = 187,131.30 × 72,136.60
  4. Step 4: Simplify right side
    124,624.60x = 13,499,015,735.58
  5. Step 5: Solve for x
    x = 13,499,015,735.58/124,624.60
  6. Step 6: Final answer
    x = 108,317.42

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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.