Home / 154,229.57-212,841.46-86,249.40

Finding the Fourth Proportional to 154,229.57, 212,841.46 and 86,249.40

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Solution

The fourth proportional to 154,229.57, 212,841.46 and 86,249.40 is: 119,026.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,229.57 : 212,841.46 = 86,249.40 : x
  2. Step 2: Convert to fraction form
    154,229.57/212,841.46 = 86,249.40/x
  3. Step 3: Cross multiply
    154,229.57x = 212,841.46 × 86,249.40
  4. Step 4: Simplify right side
    154,229.57x = 18,357,448,220.12
  5. Step 5: Solve for x
    x = 18,357,448,220.12/154,229.57
  6. Step 6: Final answer
    x = 119,026.77

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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.