Home / 154,231.54-212,838.06-86,247.74

Finding the Fourth Proportional to 154,231.54, 212,838.06 and 86,247.74

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Solution

The fourth proportional to 154,231.54, 212,838.06 and 86,247.74 is: 119,021.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,231.54 : 212,838.06 = 86,247.74 : x
  2. Step 2: Convert to fraction form
    154,231.54/212,838.06 = 86,247.74/x
  3. Step 3: Cross multiply
    154,231.54x = 212,838.06 × 86,247.74
  4. Step 4: Simplify right side
    154,231.54x = 18,356,800,596.79
  5. Step 5: Solve for x
    x = 18,356,800,596.79/154,231.54
  6. Step 6: Final answer
    x = 119,021.06

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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.