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Finding the Fourth Proportional to 115,192.98, 158,966.51 and 64,204.56

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Solution

The fourth proportional to 115,192.98, 158,966.51 and 64,204.56 is: 88,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,192.98 : 158,966.51 = 64,204.56 : x
  2. Step 2: Convert to fraction form
    115,192.98/158,966.51 = 64,204.56/x
  3. Step 3: Cross multiply
    115,192.98x = 158,966.51 × 64,204.56
  4. Step 4: Simplify right side
    115,192.98x = 10,206,374,508.26
  5. Step 5: Solve for x
    x = 10,206,374,508.26/115,192.98
  6. Step 6: Final answer
    x = 88,602.40

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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.