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Finding the Fourth Proportional to 122,875.70, 169,568.76 and 69,161.48

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Solution

The fourth proportional to 122,875.70, 169,568.76 and 69,161.48 is: 95,443.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,875.70 : 169,568.76 = 69,161.48 : x
  2. Step 2: Convert to fraction form
    122,875.70/169,568.76 = 69,161.48/x
  3. Step 3: Cross multiply
    122,875.70x = 169,568.76 × 69,161.48
  4. Step 4: Simplify right side
    122,875.70x = 11,727,626,403.36
  5. Step 5: Solve for x
    x = 11,727,626,403.36/122,875.70
  6. Step 6: Final answer
    x = 95,443.01

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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.