Home / 151,909.14-209,628.27-87,373.47

Finding the Fourth Proportional to 151,909.14, 209,628.27 and 87,373.47

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Solution

The fourth proportional to 151,909.14, 209,628.27 and 87,373.47 is: 120,571.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,909.14 : 209,628.27 = 87,373.47 : x
  2. Step 2: Convert to fraction form
    151,909.14/209,628.27 = 87,373.47/x
  3. Step 3: Cross multiply
    151,909.14x = 209,628.27 × 87,373.47
  4. Step 4: Simplify right side
    151,909.14x = 18,315,949,360.00
  5. Step 5: Solve for x
    x = 18,315,949,360.00/151,909.14
  6. Step 6: Final answer
    x = 120,571.74

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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.