Home / 151,282.28-208,797.55-87,620.06

Finding the Fourth Proportional to 151,282.28, 208,797.55 and 87,620.06

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Solution

The fourth proportional to 151,282.28, 208,797.55 and 87,620.06 is: 120,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,282.28 : 208,797.55 = 87,620.06 : x
  2. Step 2: Convert to fraction form
    151,282.28/208,797.55 = 87,620.06/x
  3. Step 3: Cross multiply
    151,282.28x = 208,797.55 × 87,620.06
  4. Step 4: Simplify right side
    151,282.28x = 18,294,854,161.80
  5. Step 5: Solve for x
    x = 18,294,854,161.80/151,282.28
  6. Step 6: Final answer
    x = 120,931.90

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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.