Home / 143,554.50-198,097.74-109,586.70

Finding the Fourth Proportional to 143,554.50, 198,097.74 and 109,586.70

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Solution

The fourth proportional to 143,554.50, 198,097.74 and 109,586.70 is: 151,223.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,554.50 : 198,097.74 = 109,586.70 : x
  2. Step 2: Convert to fraction form
    143,554.50/198,097.74 = 109,586.70/x
  3. Step 3: Cross multiply
    143,554.50x = 198,097.74 × 109,586.70
  4. Step 4: Simplify right side
    143,554.50x = 21,708,877,604.06
  5. Step 5: Solve for x
    x = 21,708,877,604.06/143,554.50
  6. Step 6: Final answer
    x = 151,223.94

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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.