Home / 189,669.12-284,580.18-84,416.10

Finding the Fourth Proportional to 189,669.12, 284,580.18 and 84,416.10

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Solution

The fourth proportional to 189,669.12, 284,580.18 and 84,416.10 is: 126,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,669.12 : 284,580.18 = 84,416.10 : x
  2. Step 2: Convert to fraction form
    189,669.12/284,580.18 = 84,416.10/x
  3. Step 3: Cross multiply
    189,669.12x = 284,580.18 × 84,416.10
  4. Step 4: Simplify right side
    189,669.12x = 24,023,148,932.90
  5. Step 5: Solve for x
    x = 24,023,148,932.90/189,669.12
  6. Step 6: Final answer
    x = 126,658.20

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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.