Home / 100,279.40-138,348.96-59,994.32

Finding the Fourth Proportional to 100,279.40, 138,348.96 and 59,994.32

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Solution

The fourth proportional to 100,279.40, 138,348.96 and 59,994.32 is: 82,770.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,279.40 : 138,348.96 = 59,994.32 : x
  2. Step 2: Convert to fraction form
    100,279.40/138,348.96 = 59,994.32/x
  3. Step 3: Cross multiply
    100,279.40x = 138,348.96 × 59,994.32
  4. Step 4: Simplify right side
    100,279.40x = 8,300,151,777.91
  5. Step 5: Solve for x
    x = 8,300,151,777.91/100,279.40
  6. Step 6: Final answer
    x = 82,770.26

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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.