Home / 102,872.08-154,373.72-43,707.76

Finding the Fourth Proportional to 102,872.08, 154,373.72 and 43,707.76

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Solution

The fourth proportional to 102,872.08, 154,373.72 and 43,707.76 is: 65,589.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,872.08 : 154,373.72 = 43,707.76 : x
  2. Step 2: Convert to fraction form
    102,872.08/154,373.72 = 43,707.76/x
  3. Step 3: Cross multiply
    102,872.08x = 154,373.72 × 43,707.76
  4. Step 4: Simplify right side
    102,872.08x = 6,747,330,353.82
  5. Step 5: Solve for x
    x = 6,747,330,353.82/102,872.08
  6. Step 6: Final answer
    x = 65,589.52

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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.