Home / 144,261.45-199,077.87-87,691.05

Finding the Fourth Proportional to 144,261.45, 199,077.87 and 87,691.05

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Solution

The fourth proportional to 144,261.45, 199,077.87 and 87,691.05 is: 121,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,261.45 : 199,077.87 = 87,691.05 : x
  2. Step 2: Convert to fraction form
    144,261.45/199,077.87 = 87,691.05/x
  3. Step 3: Cross multiply
    144,261.45x = 199,077.87 × 87,691.05
  4. Step 4: Simplify right side
    144,261.45x = 17,457,347,452.06
  5. Step 5: Solve for x
    x = 17,457,347,452.06/144,261.45
  6. Step 6: Final answer
    x = 121,011.87

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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.