Home / 178,711.63-268,119.33-72,040.53

Finding the Fourth Proportional to 178,711.63, 268,119.33 and 72,040.53

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Solution

The fourth proportional to 178,711.63, 268,119.33 and 72,040.53 is: 108,081.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,711.63 : 268,119.33 = 72,040.53 : x
  2. Step 2: Convert to fraction form
    178,711.63/268,119.33 = 72,040.53/x
  3. Step 3: Cross multiply
    178,711.63x = 268,119.33 × 72,040.53
  4. Step 4: Simplify right side
    178,711.63x = 19,315,459,371.74
  5. Step 5: Solve for x
    x = 19,315,459,371.74/178,711.63
  6. Step 6: Final answer
    x = 108,081.72

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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.