Home / 124,948.80-187,423.20-72,493.20

Finding the Fourth Proportional to 124,948.80, 187,423.20 and 72,493.20

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Solution

The fourth proportional to 124,948.80, 187,423.20 and 72,493.20 is: 108,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,948.80 : 187,423.20 = 72,493.20 : x
  2. Step 2: Convert to fraction form
    124,948.80/187,423.20 = 72,493.20/x
  3. Step 3: Cross multiply
    124,948.80x = 187,423.20 × 72,493.20
  4. Step 4: Simplify right side
    124,948.80x = 13,586,907,522.24
  5. Step 5: Solve for x
    x = 13,586,907,522.24/124,948.80
  6. Step 6: Final answer
    x = 108,739.80

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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.