Home / 122,818.48-169,488.12-69,103.60

Finding the Fourth Proportional to 122,818.48, 169,488.12 and 69,103.60

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Solution

The fourth proportional to 122,818.48, 169,488.12 and 69,103.60 is: 95,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,818.48 : 169,488.12 = 69,103.60 : x
  2. Step 2: Convert to fraction form
    122,818.48/169,488.12 = 69,103.60/x
  3. Step 3: Cross multiply
    122,818.48x = 169,488.12 × 69,103.60
  4. Step 4: Simplify right side
    122,818.48x = 11,712,239,249.23
  5. Step 5: Solve for x
    x = 11,712,239,249.23/122,818.48
  6. Step 6: Final answer
    x = 95,362.19

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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.