Home / 154,007.06-212,529.22-89,485.70

Finding the Fourth Proportional to 154,007.06, 212,529.22 and 89,485.70

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Solution

The fourth proportional to 154,007.06, 212,529.22 and 89,485.70 is: 123,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,007.06 : 212,529.22 = 89,485.70 : x
  2. Step 2: Convert to fraction form
    154,007.06/212,529.22 = 89,485.70/x
  3. Step 3: Cross multiply
    154,007.06x = 212,529.22 × 89,485.70
  4. Step 4: Simplify right side
    154,007.06x = 19,018,324,735.79
  5. Step 5: Solve for x
    x = 19,018,324,735.79/154,007.06
  6. Step 6: Final answer
    x = 123,489.96

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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.