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Finding the Fourth Proportional to 122,680.71, 169,281.03 and 68,955.48

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Solution

The fourth proportional to 122,680.71, 169,281.03 and 68,955.48 is: 95,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,680.71 : 169,281.03 = 68,955.48 : x
  2. Step 2: Convert to fraction form
    122,680.71/169,281.03 = 68,955.48/x
  3. Step 3: Cross multiply
    122,680.71x = 169,281.03 × 68,955.48
  4. Step 4: Simplify right side
    122,680.71x = 11,672,854,678.54
  5. Step 5: Solve for x
    x = 11,672,854,678.54/122,680.71
  6. Step 6: Final answer
    x = 95,148.25

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1.5x scale

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.