Home / 115,119.30-158,864.40-67,381.68

Finding the Fourth Proportional to 115,119.30, 158,864.40 and 67,381.68

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Solution

The fourth proportional to 115,119.30, 158,864.40 and 67,381.68 is: 92,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,119.30 : 158,864.40 = 67,381.68 : x
  2. Step 2: Convert to fraction form
    115,119.30/158,864.40 = 67,381.68/x
  3. Step 3: Cross multiply
    115,119.30x = 158,864.40 × 67,381.68
  4. Step 4: Simplify right side
    115,119.30x = 10,704,550,164.19
  5. Step 5: Solve for x
    x = 10,704,550,164.19/115,119.30
  6. Step 6: Final answer
    x = 92,986.58

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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.