Home / 154,592.20-213,357-90,935.92

Finding the Fourth Proportional to 154,592.20, 213,357 and 90,935.92

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Solution

The fourth proportional to 154,592.20, 213,357 and 90,935.92 is: 125,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,592.20 : 213,357 = 90,935.92 : x
  2. Step 2: Convert to fraction form
    154,592.20/213,357 = 90,935.92/x
  3. Step 3: Cross multiply
    154,592.20x = 213,357 × 90,935.92
  4. Step 4: Simplify right side
    154,592.20x = 19,401,815,083.44
  5. Step 5: Solve for x
    x = 19,401,815,083.44/154,592.20
  6. Step 6: Final answer
    x = 125,503.20

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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.