Home / 115,044.20-158,730-67,309.28

Finding the Fourth Proportional to 115,044.20, 158,730 and 67,309.28

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Solution

The fourth proportional to 115,044.20, 158,730 and 67,309.28 is: 92,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,044.20 : 158,730 = 67,309.28 : x
  2. Step 2: Convert to fraction form
    115,044.20/158,730 = 67,309.28/x
  3. Step 3: Cross multiply
    115,044.20x = 158,730 × 67,309.28
  4. Step 4: Simplify right side
    115,044.20x = 10,684,002,014.40
  5. Step 5: Solve for x
    x = 10,684,002,014.40/115,044.20
  6. Step 6: Final answer
    x = 92,868.67

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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.