Home / 100,261.13-138,360.35-59,976.59

Finding the Fourth Proportional to 100,261.13, 138,360.35 and 59,976.59

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Solution

The fourth proportional to 100,261.13, 138,360.35 and 59,976.59 is: 82,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,261.13 : 138,360.35 = 59,976.59 : x
  2. Step 2: Convert to fraction form
    100,261.13/138,360.35 = 59,976.59/x
  3. Step 3: Cross multiply
    100,261.13x = 138,360.35 × 59,976.59
  4. Step 4: Simplify right side
    100,261.13x = 8,298,381,442.35
  5. Step 5: Solve for x
    x = 8,298,381,442.35/100,261.13
  6. Step 6: Final answer
    x = 82,767.69

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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.