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Finding the Fourth Proportional to 115,170.98, 158,881.65 and 67,395.02

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Solution

The fourth proportional to 115,170.98, 158,881.65 and 67,395.02 is: 92,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,170.98 : 158,881.65 = 67,395.02 : x
  2. Step 2: Convert to fraction form
    115,170.98/158,881.65 = 67,395.02/x
  3. Step 3: Cross multiply
    115,170.98x = 158,881.65 × 67,395.02
  4. Step 4: Simplify right side
    115,170.98x = 10,707,831,979.38
  5. Step 5: Solve for x
    x = 10,707,831,979.38/115,170.98
  6. Step 6: Final answer
    x = 92,973.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.