Home / 189,432.84-261,451.23-112,956.90

Finding the Fourth Proportional to 189,432.84, 261,451.23 and 112,956.90

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Solution

The fourth proportional to 189,432.84, 261,451.23 and 112,956.90 is: 155,900.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,432.84 : 261,451.23 = 112,956.90 : x
  2. Step 2: Convert to fraction form
    189,432.84/261,451.23 = 112,956.90/x
  3. Step 3: Cross multiply
    189,432.84x = 261,451.23 × 112,956.90
  4. Step 4: Simplify right side
    189,432.84x = 29,532,720,441.99
  5. Step 5: Solve for x
    x = 29,532,720,441.99/189,432.84
  6. Step 6: Final answer
    x = 155,900.74

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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.