Home / 210,082.31-289,821.24-142,074.20

Finding the Fourth Proportional to 210,082.31, 289,821.24 and 142,074.20

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Solution

The fourth proportional to 210,082.31, 289,821.24 and 142,074.20 is: 195,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,082.31 : 289,821.24 = 142,074.20 : x
  2. Step 2: Convert to fraction form
    210,082.31/289,821.24 = 142,074.20/x
  3. Step 3: Cross multiply
    210,082.31x = 289,821.24 × 142,074.20
  4. Step 4: Simplify right side
    210,082.31x = 41,176,121,540.56
  5. Step 5: Solve for x
    x = 41,176,121,540.56/210,082.31
  6. Step 6: Final answer
    x = 195,999.95

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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.