Home / 146,709.84-220,038.76-66,729.13

Finding the Fourth Proportional to 146,709.84, 220,038.76 and 66,729.13

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Solution

The fourth proportional to 146,709.84, 220,038.76 and 66,729.13 is: 100,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,709.84 : 220,038.76 = 66,729.13 : x
  2. Step 2: Convert to fraction form
    146,709.84/220,038.76 = 66,729.13/x
  3. Step 3: Cross multiply
    146,709.84x = 220,038.76 × 66,729.13
  4. Step 4: Simplify right side
    146,709.84x = 14,682,995,021.08
  5. Step 5: Solve for x
    x = 14,682,995,021.08/146,709.84
  6. Step 6: Final answer
    x = 100,081.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.