Home / 154,813.20-213,661.98-91,156.92

Finding the Fourth Proportional to 154,813.20, 213,661.98 and 91,156.92

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Solution

The fourth proportional to 154,813.20, 213,661.98 and 91,156.92 is: 125,808.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,813.20 : 213,661.98 = 91,156.92 : x
  2. Step 2: Convert to fraction form
    154,813.20/213,661.98 = 91,156.92/x
  3. Step 3: Cross multiply
    154,813.20x = 213,661.98 × 91,156.92
  4. Step 4: Simplify right side
    154,813.20x = 19,476,768,017.90
  5. Step 5: Solve for x
    x = 19,476,768,017.90/154,813.20
  6. Step 6: Final answer
    x = 125,808.19

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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.