Home / 157,213.20-235,355.67-103,806.66

Finding the Fourth Proportional to 157,213.20, 235,355.67 and 103,806.66

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Solution

The fourth proportional to 157,213.20, 235,355.67 and 103,806.66 is: 155,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,213.20 : 235,355.67 = 103,806.66 : x
  2. Step 2: Convert to fraction form
    157,213.20/235,355.67 = 103,806.66/x
  3. Step 3: Cross multiply
    157,213.20x = 235,355.67 × 103,806.66
  4. Step 4: Simplify right side
    157,213.20x = 24,431,486,014.76
  5. Step 5: Solve for x
    x = 24,431,486,014.76/157,213.20
  6. Step 6: Final answer
    x = 155,403.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.