Home / 124,858.12-172,301.60-68,269.50

Finding the Fourth Proportional to 124,858.12, 172,301.60 and 68,269.50

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Solution

The fourth proportional to 124,858.12, 172,301.60 and 68,269.50 is: 94,210.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,858.12 : 172,301.60 = 68,269.50 : x
  2. Step 2: Convert to fraction form
    124,858.12/172,301.60 = 68,269.50/x
  3. Step 3: Cross multiply
    124,858.12x = 172,301.60 × 68,269.50
  4. Step 4: Simplify right side
    124,858.12x = 11,762,943,309.10
  5. Step 5: Solve for x
    x = 11,762,943,309.10/124,858.12
  6. Step 6: Final answer
    x = 94,210.48

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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.