Home / 154,233.05-212,840.13-86,249.24

Finding the Fourth Proportional to 154,233.05, 212,840.13 and 86,249.24

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Solution

The fourth proportional to 154,233.05, 212,840.13 and 86,249.24 is: 119,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,233.05 : 212,840.13 = 86,249.24 : x
  2. Step 2: Convert to fraction form
    154,233.05/212,840.13 = 86,249.24/x
  3. Step 3: Cross multiply
    154,233.05x = 212,840.13 × 86,249.24
  4. Step 4: Simplify right side
    154,233.05x = 18,357,298,389.80
  5. Step 5: Solve for x
    x = 18,357,298,389.80/154,233.05
  6. Step 6: Final answer
    x = 119,023.12

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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.