Home / 100,279.06-138,385.04-59,994.46

Finding the Fourth Proportional to 100,279.06, 138,385.04 and 59,994.46

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Solution

The fourth proportional to 100,279.06, 138,385.04 and 59,994.46 is: 82,792.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,279.06 : 138,385.04 = 59,994.46 : x
  2. Step 2: Convert to fraction form
    100,279.06/138,385.04 = 59,994.46/x
  3. Step 3: Cross multiply
    100,279.06x = 138,385.04 × 59,994.46
  4. Step 4: Simplify right side
    100,279.06x = 8,302,335,746.88
  5. Step 5: Solve for x
    x = 8,302,335,746.88/100,279.06
  6. Step 6: Final answer
    x = 82,792.32

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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.