Home / 115,151.56-172,727.34-65,869

Finding the Fourth Proportional to 115,151.56, 172,727.34 and 65,869

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Solution

The fourth proportional to 115,151.56, 172,727.34 and 65,869 is: 98,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,151.56 : 172,727.34 = 65,869 : x
  2. Step 2: Convert to fraction form
    115,151.56/172,727.34 = 65,869/x
  3. Step 3: Cross multiply
    115,151.56x = 172,727.34 × 65,869
  4. Step 4: Simplify right side
    115,151.56x = 11,377,377,158.46
  5. Step 5: Solve for x
    x = 11,377,377,158.46/115,151.56
  6. Step 6: Final answer
    x = 98,803.50

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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.