Home / 122,828.32-169,513.05-69,110.20

Finding the Fourth Proportional to 122,828.32, 169,513.05 and 69,110.20

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Solution

The fourth proportional to 122,828.32, 169,513.05 and 69,110.20 is: 95,377.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,828.32 : 169,513.05 = 69,110.20 : x
  2. Step 2: Convert to fraction form
    122,828.32/169,513.05 = 69,110.20/x
  3. Step 3: Cross multiply
    122,828.32x = 169,513.05 × 69,110.20
  4. Step 4: Simplify right side
    122,828.32x = 11,715,080,788.11
  5. Step 5: Solve for x
    x = 11,715,080,788.11/122,828.32
  6. Step 6: Final answer
    x = 95,377.68

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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.