Home / 151,838.80-209,563.18-88,213.50

Finding the Fourth Proportional to 151,838.80, 209,563.18 and 88,213.50

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Solution

The fourth proportional to 151,838.80, 209,563.18 and 88,213.50 is: 121,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,838.80 : 209,563.18 = 88,213.50 : x
  2. Step 2: Convert to fraction form
    151,838.80/209,563.18 = 88,213.50/x
  3. Step 3: Cross multiply
    151,838.80x = 209,563.18 × 88,213.50
  4. Step 4: Simplify right side
    151,838.80x = 18,486,301,578.93
  5. Step 5: Solve for x
    x = 18,486,301,578.93/151,838.80
  6. Step 6: Final answer
    x = 121,749.52

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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.