Home / 189,836.88-284,534.94-71,432.76

Finding the Fourth Proportional to 189,836.88, 284,534.94 and 71,432.76

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Solution

The fourth proportional to 189,836.88, 284,534.94 and 71,432.76 is: 107,066.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,836.88 : 284,534.94 = 71,432.76 : x
  2. Step 2: Convert to fraction form
    189,836.88/284,534.94 = 71,432.76/x
  3. Step 3: Cross multiply
    189,836.88x = 284,534.94 × 71,432.76
  4. Step 4: Simplify right side
    189,836.88x = 20,325,116,080.63
  5. Step 5: Solve for x
    x = 20,325,116,080.63/189,836.88
  6. Step 6: Final answer
    x = 107,066.21

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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.