Home / 151,342.54-208,852.70-87,717.25

Finding the Fourth Proportional to 151,342.54, 208,852.70 and 87,717.25

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Solution

The fourth proportional to 151,342.54, 208,852.70 and 87,717.25 is: 121,049.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,342.54 : 208,852.70 = 87,717.25 : x
  2. Step 2: Convert to fraction form
    151,342.54/208,852.70 = 87,717.25/x
  3. Step 3: Cross multiply
    151,342.54x = 208,852.70 × 87,717.25
  4. Step 4: Simplify right side
    151,342.54x = 18,319,983,345.16
  5. Step 5: Solve for x
    x = 18,319,983,345.16/151,342.54
  6. Step 6: Final answer
    x = 121,049.79

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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.