Home / 151,104.12-208,510.83-87,445.86

Finding the Fourth Proportional to 151,104.12, 208,510.83 and 87,445.86

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Solution

The fourth proportional to 151,104.12, 208,510.83 and 87,445.86 is: 120,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,104.12 : 208,510.83 = 87,445.86 : x
  2. Step 2: Convert to fraction form
    151,104.12/208,510.83 = 87,445.86/x
  3. Step 3: Cross multiply
    151,104.12x = 208,510.83 × 87,445.86
  4. Step 4: Simplify right side
    151,104.12x = 18,233,408,848.66
  5. Step 5: Solve for x
    x = 18,233,408,848.66/151,104.12
  6. Step 6: Final answer
    x = 120,667.85

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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.