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Finding the Fourth Proportional to 100,114.93, 138,144.93 and 59,820.13

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Solution

The fourth proportional to 100,114.93, 138,144.93 and 59,820.13 is: 82,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,114.93 : 138,144.93 = 59,820.13 : x
  2. Step 2: Convert to fraction form
    100,114.93/138,144.93 = 59,820.13/x
  3. Step 3: Cross multiply
    100,114.93x = 138,144.93 × 59,820.13
  4. Step 4: Simplify right side
    100,114.93x = 8,263,847,671.44
  5. Step 5: Solve for x
    x = 8,263,847,671.44/100,114.93
  6. Step 6: Final answer
    x = 82,543.61

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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.