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Finding the Fourth Proportional to 115,107.96, 158,873.49 and 77,360.34

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Solution

The fourth proportional to 115,107.96, 158,873.49 and 77,360.34 is: 106,773.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,107.96 : 158,873.49 = 77,360.34 : x
  2. Step 2: Convert to fraction form
    115,107.96/158,873.49 = 77,360.34/x
  3. Step 3: Cross multiply
    115,107.96x = 158,873.49 × 77,360.34
  4. Step 4: Simplify right side
    115,107.96x = 12,290,507,203.39
  5. Step 5: Solve for x
    x = 12,290,507,203.39/115,107.96
  6. Step 6: Final answer
    x = 106,773.74

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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.