Home / 115,397.28-173,105.64-36,509.76

Finding the Fourth Proportional to 115,397.28, 173,105.64 and 36,509.76

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Solution

The fourth proportional to 115,397.28, 173,105.64 and 36,509.76 is: 54,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,397.28 : 173,105.64 = 36,509.76 : x
  2. Step 2: Convert to fraction form
    115,397.28/173,105.64 = 36,509.76/x
  3. Step 3: Cross multiply
    115,397.28x = 173,105.64 × 36,509.76
  4. Step 4: Simplify right side
    115,397.28x = 6,320,045,371.05
  5. Step 5: Solve for x
    x = 6,320,045,371.05/115,397.28
  6. Step 6: Final answer
    x = 54,767.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.