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Finding the Fourth Proportional to 115,114.79, 158,858.19 and 67,377.17

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Solution

The fourth proportional to 115,114.79, 158,858.19 and 67,377.17 is: 92,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,114.79 : 158,858.19 = 67,377.17 : x
  2. Step 2: Convert to fraction form
    115,114.79/158,858.19 = 67,377.17/x
  3. Step 3: Cross multiply
    115,114.79x = 158,858.19 × 67,377.17
  4. Step 4: Simplify right side
    115,114.79x = 10,703,414,479.23
  5. Step 5: Solve for x
    x = 10,703,414,479.23/115,114.79
  6. Step 6: Final answer
    x = 92,980.36

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1.5x scale

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.