Home / 178,829.15-268,184.49-72,185.57

Finding the Fourth Proportional to 178,829.15, 268,184.49 and 72,185.57

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Solution

The fourth proportional to 178,829.15, 268,184.49 and 72,185.57 is: 108,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,829.15 : 268,184.49 = 72,185.57 : x
  2. Step 2: Convert to fraction form
    178,829.15/268,184.49 = 72,185.57/x
  3. Step 3: Cross multiply
    178,829.15x = 268,184.49 × 72,185.57
  4. Step 4: Simplify right side
    178,829.15x = 19,359,048,934.89
  5. Step 5: Solve for x
    x = 19,359,048,934.89/178,829.15
  6. Step 6: Final answer
    x = 108,254.44

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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.