Home / 115,044.12-158,709.65-67,276.40

Finding the Fourth Proportional to 115,044.12, 158,709.65 and 67,276.40

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Solution

The fourth proportional to 115,044.12, 158,709.65 and 67,276.40 is: 92,811.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,044.12 : 158,709.65 = 67,276.40 : x
  2. Step 2: Convert to fraction form
    115,044.12/158,709.65 = 67,276.40/x
  3. Step 3: Cross multiply
    115,044.12x = 158,709.65 × 67,276.40
  4. Step 4: Simplify right side
    115,044.12x = 10,677,412,767.33
  5. Step 5: Solve for x
    x = 10,677,412,767.33/115,044.12
  6. Step 6: Final answer
    x = 92,811.46

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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.