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Finding the Fourth Proportional to 115,174.62, 158,886.63 and 67,398.39

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Solution

The fourth proportional to 115,174.62, 158,886.63 and 67,398.39 is: 92,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,174.62 : 158,886.63 = 67,398.39 : x
  2. Step 2: Convert to fraction form
    115,174.62/158,886.63 = 67,398.39/x
  3. Step 3: Cross multiply
    115,174.62x = 158,886.63 × 67,398.39
  4. Step 4: Simplify right side
    115,174.62x = 10,708,703,054.53
  5. Step 5: Solve for x
    x = 10,708,703,054.53/115,174.62
  6. Step 6: Final answer
    x = 92,977.98

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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.