Home / 124,880.63-172,331.75-68,290.79

Finding the Fourth Proportional to 124,880.63, 172,331.75 and 68,290.79

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Solution

The fourth proportional to 124,880.63, 172,331.75 and 68,290.79 is: 94,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,880.63 : 172,331.75 = 68,290.79 : x
  2. Step 2: Convert to fraction form
    124,880.63/172,331.75 = 68,290.79/x
  3. Step 3: Cross multiply
    124,880.63x = 172,331.75 × 68,290.79
  4. Step 4: Simplify right side
    124,880.63x = 11,768,670,658.65
  5. Step 5: Solve for x
    x = 11,768,670,658.65/124,880.63
  6. Step 6: Final answer
    x = 94,239.36

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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.