Home / 178,845.17-268,267.81-66,510.72

Finding the Fourth Proportional to 178,845.17, 268,267.81 and 66,510.72

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Solution

The fourth proportional to 178,845.17, 268,267.81 and 66,510.72 is: 99,766.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,845.17 : 268,267.81 = 66,510.72 : x
  2. Step 2: Convert to fraction form
    178,845.17/268,267.81 = 66,510.72/x
  3. Step 3: Cross multiply
    178,845.17x = 268,267.81 × 66,510.72
  4. Step 4: Simplify right side
    178,845.17x = 17,842,685,195.92
  5. Step 5: Solve for x
    x = 17,842,685,195.92/178,845.17
  6. Step 6: Final answer
    x = 99,766.10

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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.