Home / 124,517.16-171,810.18-74,220.84

Finding the Fourth Proportional to 124,517.16, 171,810.18 and 74,220.84

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Solution

The fourth proportional to 124,517.16, 171,810.18 and 74,220.84 is: 102,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,517.16 : 171,810.18 = 74,220.84 : x
  2. Step 2: Convert to fraction form
    124,517.16/171,810.18 = 74,220.84/x
  3. Step 3: Cross multiply
    124,517.16x = 171,810.18 × 74,220.84
  4. Step 4: Simplify right side
    124,517.16x = 12,751,895,880.15
  5. Step 5: Solve for x
    x = 12,751,895,880.15/124,517.16
  6. Step 6: Final answer
    x = 102,410.75

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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.