Home / 115,047.20-158,734.14-67,312.28

Finding the Fourth Proportional to 115,047.20, 158,734.14 and 67,312.28

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Solution

The fourth proportional to 115,047.20, 158,734.14 and 67,312.28 is: 92,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,047.20 : 158,734.14 = 67,312.28 : x
  2. Step 2: Convert to fraction form
    115,047.20/158,734.14 = 67,312.28/x
  3. Step 3: Cross multiply
    115,047.20x = 158,734.14 × 67,312.28
  4. Step 4: Simplify right side
    115,047.20x = 10,684,756,877.24
  5. Step 5: Solve for x
    x = 10,684,756,877.24/115,047.20
  6. Step 6: Final answer
    x = 92,872.81

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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.