Home / 151,377.48-208,890.90-87,703.92

Finding the Fourth Proportional to 151,377.48, 208,890.90 and 87,703.92

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Solution

The fourth proportional to 151,377.48, 208,890.90 and 87,703.92 is: 121,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,377.48 : 208,890.90 = 87,703.92 : x
  2. Step 2: Convert to fraction form
    151,377.48/208,890.90 = 87,703.92/x
  3. Step 3: Cross multiply
    151,377.48x = 208,890.90 × 87,703.92
  4. Step 4: Simplify right side
    151,377.48x = 18,320,550,782.33
  5. Step 5: Solve for x
    x = 18,320,550,782.33/151,377.48
  6. Step 6: Final answer
    x = 121,025.60

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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.