Home / 115,851.04-159,853.44-68,106.40

Finding the Fourth Proportional to 115,851.04, 159,853.44 and 68,106.40

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Solution

The fourth proportional to 115,851.04, 159,853.44 and 68,106.40 is: 93,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,851.04 : 159,853.44 = 68,106.40 : x
  2. Step 2: Convert to fraction form
    115,851.04/159,853.44 = 68,106.40/x
  3. Step 3: Cross multiply
    115,851.04x = 159,853.44 × 68,106.40
  4. Step 4: Simplify right side
    115,851.04x = 10,887,042,326.02
  5. Step 5: Solve for x
    x = 10,887,042,326.02/115,851.04
  6. Step 6: Final answer
    x = 93,974.49

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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.