Home / 115,746.60-173,619.90-68,507.40

Finding the Fourth Proportional to 115,746.60, 173,619.90 and 68,507.40

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Solution

The fourth proportional to 115,746.60, 173,619.90 and 68,507.40 is: 102,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,746.60 : 173,619.90 = 68,507.40 : x
  2. Step 2: Convert to fraction form
    115,746.60/173,619.90 = 68,507.40/x
  3. Step 3: Cross multiply
    115,746.60x = 173,619.90 × 68,507.40
  4. Step 4: Simplify right side
    115,746.60x = 11,894,247,937.26
  5. Step 5: Solve for x
    x = 11,894,247,937.26/115,746.60
  6. Step 6: Final answer
    x = 102,761.10

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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.