Home / 154,239.21-212,903.64-106,000.92

Finding the Fourth Proportional to 154,239.21, 212,903.64 and 106,000.92

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Solution

The fourth proportional to 154,239.21, 212,903.64 and 106,000.92 is: 146,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,239.21 : 212,903.64 = 106,000.92 : x
  2. Step 2: Convert to fraction form
    154,239.21/212,903.64 = 106,000.92/x
  3. Step 3: Cross multiply
    154,239.21x = 212,903.64 × 106,000.92
  4. Step 4: Simplify right side
    154,239.21x = 22,567,981,711.35
  5. Step 5: Solve for x
    x = 22,567,981,711.35/154,239.21
  6. Step 6: Final answer
    x = 146,318.06

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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.