Home / 154,162.68-212,778.78-93,720.50

Finding the Fourth Proportional to 154,162.68, 212,778.78 and 93,720.50

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Solution

The fourth proportional to 154,162.68, 212,778.78 and 93,720.50 is: 129,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,162.68 : 212,778.78 = 93,720.50 : x
  2. Step 2: Convert to fraction form
    154,162.68/212,778.78 = 93,720.50/x
  3. Step 3: Cross multiply
    154,162.68x = 212,778.78 × 93,720.50
  4. Step 4: Simplify right side
    154,162.68x = 19,941,733,650.99
  5. Step 5: Solve for x
    x = 19,941,733,650.99/154,162.68
  6. Step 6: Final answer
    x = 129,355.13

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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.