Home / 122,968.65-169,703.07-75,207

Finding the Fourth Proportional to 122,968.65, 169,703.07 and 75,207

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Solution

The fourth proportional to 122,968.65, 169,703.07 and 75,207 is: 103,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,968.65 : 169,703.07 = 75,207 : x
  2. Step 2: Convert to fraction form
    122,968.65/169,703.07 = 75,207/x
  3. Step 3: Cross multiply
    122,968.65x = 169,703.07 × 75,207
  4. Step 4: Simplify right side
    122,968.65x = 12,762,858,785.49
  5. Step 5: Solve for x
    x = 12,762,858,785.49/122,968.65
  6. Step 6: Final answer
    x = 103,789.53

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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.