Home / 154,836.46-213,623.85-90,291.07

Finding the Fourth Proportional to 154,836.46, 213,623.85 and 90,291.07

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Solution

The fourth proportional to 154,836.46, 213,623.85 and 90,291.07 is: 124,572.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,836.46 : 213,623.85 = 90,291.07 : x
  2. Step 2: Convert to fraction form
    154,836.46/213,623.85 = 90,291.07/x
  3. Step 3: Cross multiply
    154,836.46x = 213,623.85 × 90,291.07
  4. Step 4: Simplify right side
    154,836.46x = 19,288,325,994.02
  5. Step 5: Solve for x
    x = 19,288,325,994.02/154,836.46
  6. Step 6: Final answer
    x = 124,572.25

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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.