Home / 151,764.66-209,442.00-87,254.82

Finding the Fourth Proportional to 151,764.66, 209,442.00 and 87,254.82

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Solution

The fourth proportional to 151,764.66, 209,442.00 and 87,254.82 is: 120,415.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,764.66 : 209,442.00 = 87,254.82 : x
  2. Step 2: Convert to fraction form
    151,764.66/209,442.00 = 87,254.82/x
  3. Step 3: Cross multiply
    151,764.66x = 209,442.00 × 87,254.82
  4. Step 4: Simplify right side
    151,764.66x = 18,274,824,337.65
  5. Step 5: Solve for x
    x = 18,274,824,337.65/151,764.66
  6. Step 6: Final answer
    x = 120,415.54

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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.