Home / 151,909.01-209,628.06-87,373.35

Finding the Fourth Proportional to 151,909.01, 209,628.06 and 87,373.35

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Solution

The fourth proportional to 151,909.01, 209,628.06 and 87,373.35 is: 120,571.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,909.01 : 209,628.06 = 87,373.35 : x
  2. Step 2: Convert to fraction form
    151,909.01/209,628.06 = 87,373.35/x
  3. Step 3: Cross multiply
    151,909.01x = 209,628.06 × 87,373.35
  4. Step 4: Simplify right side
    151,909.01x = 18,315,905,856.20
  5. Step 5: Solve for x
    x = 18,315,905,856.20/151,909.01
  6. Step 6: Final answer
    x = 120,571.56

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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.