Home / 154,024.85-212,552.57-90,350.39

Finding the Fourth Proportional to 154,024.85, 212,552.57 and 90,350.39

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Solution

The fourth proportional to 154,024.85, 212,552.57 and 90,350.39 is: 124,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,024.85 : 212,552.57 = 90,350.39 : x
  2. Step 2: Convert to fraction form
    154,024.85/212,552.57 = 90,350.39/x
  3. Step 3: Cross multiply
    154,024.85x = 212,552.57 × 90,350.39
  4. Step 4: Simplify right side
    154,024.85x = 19,204,207,143.25
  5. Step 5: Solve for x
    x = 19,204,207,143.25/154,024.85
  6. Step 6: Final answer
    x = 124,682.52

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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.