Home / 233,912.29-322,800.78-129,139.50

Finding the Fourth Proportional to 233,912.29, 322,800.78 and 129,139.50

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Solution

The fourth proportional to 233,912.29, 322,800.78 and 129,139.50 is: 178,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,912.29 : 322,800.78 = 129,139.50 : x
  2. Step 2: Convert to fraction form
    233,912.29/322,800.78 = 129,139.50/x
  3. Step 3: Cross multiply
    233,912.29x = 322,800.78 × 129,139.50
  4. Step 4: Simplify right side
    233,912.29x = 41,686,331,328.81
  5. Step 5: Solve for x
    x = 41,686,331,328.81/233,912.29
  6. Step 6: Final answer
    x = 178,213.51

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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.