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Finding the Fourth Proportional to 122,275.86, 168,770.70 and 74,555.52

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Solution

The fourth proportional to 122,275.86, 168,770.70 and 74,555.52 is: 102,904.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,275.86 : 168,770.70 = 74,555.52 : x
  2. Step 2: Convert to fraction form
    122,275.86/168,770.70 = 74,555.52/x
  3. Step 3: Cross multiply
    122,275.86x = 168,770.70 × 74,555.52
  4. Step 4: Simplify right side
    122,275.86x = 12,582,787,299.26
  5. Step 5: Solve for x
    x = 12,582,787,299.26/122,275.86
  6. Step 6: Final answer
    x = 102,904.92

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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.