Home / 178,631.18-268,076.38-143,989.10

Finding the Fourth Proportional to 178,631.18, 268,076.38 and 143,989.10

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Solution

The fourth proportional to 178,631.18, 268,076.38 and 143,989.10 is: 216,088.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,631.18 : 268,076.38 = 143,989.10 : x
  2. Step 2: Convert to fraction form
    178,631.18/268,076.38 = 143,989.10/x
  3. Step 3: Cross multiply
    178,631.18x = 268,076.38 × 143,989.10
  4. Step 4: Simplify right side
    178,631.18x = 38,600,076,687.46
  5. Step 5: Solve for x
    x = 38,600,076,687.46/178,631.18
  6. Step 6: Final answer
    x = 216,088.12

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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.