Home / 151,393.14-208,922.55-87,767.85

Finding the Fourth Proportional to 151,393.14, 208,922.55 and 87,767.85

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Solution

The fourth proportional to 151,393.14, 208,922.55 and 87,767.85 is: 121,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,393.14 : 208,922.55 = 87,767.85 : x
  2. Step 2: Convert to fraction form
    151,393.14/208,922.55 = 87,767.85/x
  3. Step 3: Cross multiply
    151,393.14x = 208,922.55 × 87,767.85
  4. Step 4: Simplify right side
    151,393.14x = 18,336,683,030.02
  5. Step 5: Solve for x
    x = 18,336,683,030.02/151,393.14
  6. Step 6: Final answer
    x = 121,119.64

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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.