Home / 154,358.52-213,008.94-87,291.96

Finding the Fourth Proportional to 154,358.52, 213,008.94 and 87,291.96

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Solution

The fourth proportional to 154,358.52, 213,008.94 and 87,291.96 is: 120,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,358.52 : 213,008.94 = 87,291.96 : x
  2. Step 2: Convert to fraction form
    154,358.52/213,008.94 = 87,291.96/x
  3. Step 3: Cross multiply
    154,358.52x = 213,008.94 × 87,291.96
  4. Step 4: Simplify right side
    154,358.52x = 18,593,967,870.12
  5. Step 5: Solve for x
    x = 18,593,967,870.12/154,358.52
  6. Step 6: Final answer
    x = 120,459.61

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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.