Home / 100,401.51-138,543.78-60,114.24

Finding the Fourth Proportional to 100,401.51, 138,543.78 and 60,114.24

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Solution

The fourth proportional to 100,401.51, 138,543.78 and 60,114.24 is: 82,951.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,401.51 : 138,543.78 = 60,114.24 : x
  2. Step 2: Convert to fraction form
    100,401.51/138,543.78 = 60,114.24/x
  3. Step 3: Cross multiply
    100,401.51x = 138,543.78 × 60,114.24
  4. Step 4: Simplify right side
    100,401.51x = 8,328,454,041.43
  5. Step 5: Solve for x
    x = 8,328,454,041.43/100,401.51
  6. Step 6: Final answer
    x = 82,951.48

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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.