Home / 189,532.12-261,546.42-103,484.20

Finding the Fourth Proportional to 189,532.12, 261,546.42 and 103,484.20

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Solution

The fourth proportional to 189,532.12, 261,546.42 and 103,484.20 is: 142,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,532.12 : 261,546.42 = 103,484.20 : x
  2. Step 2: Convert to fraction form
    189,532.12/261,546.42 = 103,484.20/x
  3. Step 3: Cross multiply
    189,532.12x = 261,546.42 × 103,484.20
  4. Step 4: Simplify right side
    189,532.12x = 27,065,922,036.56
  5. Step 5: Solve for x
    x = 27,065,922,036.56/189,532.12
  6. Step 6: Final answer
    x = 142,803.88

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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.