Home / 154,277.87-212,882.19-86,291.33

Finding the Fourth Proportional to 154,277.87, 212,882.19 and 86,291.33

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Solution

The fourth proportional to 154,277.87, 212,882.19 and 86,291.33 is: 119,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,277.87 : 212,882.19 = 86,291.33 : x
  2. Step 2: Convert to fraction form
    154,277.87/212,882.19 = 86,291.33/x
  3. Step 3: Cross multiply
    154,277.87x = 212,882.19 × 86,291.33
  4. Step 4: Simplify right side
    154,277.87x = 18,369,887,308.41
  5. Step 5: Solve for x
    x = 18,369,887,308.41/154,277.87
  6. Step 6: Final answer
    x = 119,070.14

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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.