Home / 122,921.04-169,647.48-71,949.36

Finding the Fourth Proportional to 122,921.04, 169,647.48 and 71,949.36

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Solution

The fourth proportional to 122,921.04, 169,647.48 and 71,949.36 is: 99,299.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,921.04 : 169,647.48 = 71,949.36 : x
  2. Step 2: Convert to fraction form
    122,921.04/169,647.48 = 71,949.36/x
  3. Step 3: Cross multiply
    122,921.04x = 169,647.48 × 71,949.36
  4. Step 4: Simplify right side
    122,921.04x = 12,206,027,611.61
  5. Step 5: Solve for x
    x = 12,206,027,611.61/122,921.04
  6. Step 6: Final answer
    x = 99,299.74

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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.