Home / 179,618.72-269,428.10-99,705.76

Finding the Fourth Proportional to 179,618.72, 269,428.10 and 99,705.76

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Solution

The fourth proportional to 179,618.72, 269,428.10 and 99,705.76 is: 149,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,618.72 : 269,428.10 = 99,705.76 : x
  2. Step 2: Convert to fraction form
    179,618.72/269,428.10 = 99,705.76/x
  3. Step 3: Cross multiply
    179,618.72x = 269,428.10 × 99,705.76
  4. Step 4: Simplify right side
    179,618.72x = 26,863,533,475.86
  5. Step 5: Solve for x
    x = 26,863,533,475.86/179,618.72
  6. Step 6: Final answer
    x = 149,558.65

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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.