Home / 122,972.68-169,714.37-71,982.34

Finding the Fourth Proportional to 122,972.68, 169,714.37 and 71,982.34

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Solution

The fourth proportional to 122,972.68, 169,714.37 and 71,982.34 is: 99,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,972.68 : 169,714.37 = 71,982.34 : x
  2. Step 2: Convert to fraction form
    122,972.68/169,714.37 = 71,982.34/x
  3. Step 3: Cross multiply
    122,972.68x = 169,714.37 × 71,982.34
  4. Step 4: Simplify right side
    122,972.68x = 12,216,437,239.90
  5. Step 5: Solve for x
    x = 12,216,437,239.90/122,972.68
  6. Step 6: Final answer
    x = 99,342.69

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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.