Home / 154,277.90-212,923.22-86,298.65

Finding the Fourth Proportional to 154,277.90, 212,923.22 and 86,298.65

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Solution

The fourth proportional to 154,277.90, 212,923.22 and 86,298.65 is: 119,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,277.90 : 212,923.22 = 86,298.65 : x
  2. Step 2: Convert to fraction form
    154,277.90/212,923.22 = 86,298.65/x
  3. Step 3: Cross multiply
    154,277.90x = 212,923.22 × 86,298.65
  4. Step 4: Simplify right side
    154,277.90x = 18,374,986,439.65
  5. Step 5: Solve for x
    x = 18,374,986,439.65/154,277.90
  6. Step 6: Final answer
    x = 119,103.17

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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.