Home / 124,994.16-172,491.12-68,405.40

Finding the Fourth Proportional to 124,994.16, 172,491.12 and 68,405.40

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Solution

The fourth proportional to 124,994.16, 172,491.12 and 68,405.40 is: 94,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,994.16 : 172,491.12 = 68,405.40 : x
  2. Step 2: Convert to fraction form
    124,994.16/172,491.12 = 68,405.40/x
  3. Step 3: Cross multiply
    124,994.16x = 172,491.12 × 68,405.40
  4. Step 4: Simplify right side
    124,994.16x = 11,799,324,060.05
  5. Step 5: Solve for x
    x = 11,799,324,060.05/124,994.16
  6. Step 6: Final answer
    x = 94,399.00

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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.