Home / 100,114.74-138,148.92-59,820.48

Finding the Fourth Proportional to 100,114.74, 138,148.92 and 59,820.48

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Solution

The fourth proportional to 100,114.74, 138,148.92 and 59,820.48 is: 82,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,114.74 : 138,148.92 = 59,820.48 : x
  2. Step 2: Convert to fraction form
    100,114.74/138,148.92 = 59,820.48/x
  3. Step 3: Cross multiply
    100,114.74x = 138,148.92 × 59,820.48
  4. Step 4: Simplify right side
    100,114.74x = 8,264,134,705.88
  5. Step 5: Solve for x
    x = 8,264,134,705.88/100,114.74
  6. Step 6: Final answer
    x = 82,546.63

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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.