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Finding the Fourth Proportional to 122,804.85, 169,458.63 and 69,088.71

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Solution

The fourth proportional to 122,804.85, 169,458.63 and 69,088.71 is: 95,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,804.85 : 169,458.63 = 69,088.71 : x
  2. Step 2: Convert to fraction form
    122,804.85/169,458.63 = 69,088.71/x
  3. Step 3: Cross multiply
    122,804.85x = 169,458.63 × 69,088.71
  4. Step 4: Simplify right side
    122,804.85x = 11,707,678,145.07
  5. Step 5: Solve for x
    x = 11,707,678,145.07/122,804.85
  6. Step 6: Final answer
    x = 95,335.63

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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.