Home / 123,217.60-170,041.31-68,028.70

Finding the Fourth Proportional to 123,217.60, 170,041.31 and 68,028.70

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Solution

The fourth proportional to 123,217.60, 170,041.31 and 68,028.70 is: 93,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,217.60 : 170,041.31 = 68,028.70 : x
  2. Step 2: Convert to fraction form
    123,217.60/170,041.31 = 68,028.70/x
  3. Step 3: Cross multiply
    123,217.60x = 170,041.31 × 68,028.70
  4. Step 4: Simplify right side
    123,217.60x = 11,567,688,925.45
  5. Step 5: Solve for x
    x = 11,567,688,925.45/123,217.60
  6. Step 6: Final answer
    x = 93,880.17

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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.