Home / 159,531.75-220,156.56-103,041.54

Finding the Fourth Proportional to 159,531.75, 220,156.56 and 103,041.54

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Solution

The fourth proportional to 159,531.75, 220,156.56 and 103,041.54 is: 142,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,531.75 : 220,156.56 = 103,041.54 : x
  2. Step 2: Convert to fraction form
    159,531.75/220,156.56 = 103,041.54/x
  3. Step 3: Cross multiply
    159,531.75x = 220,156.56 × 103,041.54
  4. Step 4: Simplify right side
    159,531.75x = 22,685,270,983.50
  5. Step 5: Solve for x
    x = 22,685,270,983.50/159,531.75
  6. Step 6: Final answer
    x = 142,199.10

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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.