Home / 122,550.64-169,187.20-74,161.60

Finding the Fourth Proportional to 122,550.64, 169,187.20 and 74,161.60

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Solution

The fourth proportional to 122,550.64, 169,187.20 and 74,161.60 is: 102,383.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,550.64 : 169,187.20 = 74,161.60 : x
  2. Step 2: Convert to fraction form
    122,550.64/169,187.20 = 74,161.60/x
  3. Step 3: Cross multiply
    122,550.64x = 169,187.20 × 74,161.60
  4. Step 4: Simplify right side
    122,550.64x = 12,547,193,451.52
  5. Step 5: Solve for x
    x = 12,547,193,451.52/122,550.64
  6. Step 6: Final answer
    x = 102,383.74

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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.