Home / 115,705.40-173,622.90-49,134.20

Finding the Fourth Proportional to 115,705.40, 173,622.90 and 49,134.20

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Solution

The fourth proportional to 115,705.40, 173,622.90 and 49,134.20 is: 73,728.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,705.40 : 173,622.90 = 49,134.20 : x
  2. Step 2: Convert to fraction form
    115,705.40/173,622.90 = 49,134.20/x
  3. Step 3: Cross multiply
    115,705.40x = 173,622.90 × 49,134.20
  4. Step 4: Simplify right side
    115,705.40x = 8,530,822,293.18
  5. Step 5: Solve for x
    x = 8,530,822,293.18/115,705.40
  6. Step 6: Final answer
    x = 73,728.82

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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.