Home / 189,971.10-284,920.20-56,855.70

Finding the Fourth Proportional to 189,971.10, 284,920.20 and 56,855.70

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Solution

The fourth proportional to 189,971.10, 284,920.20 and 56,855.70 is: 85,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,971.10 : 284,920.20 = 56,855.70 : x
  2. Step 2: Convert to fraction form
    189,971.10/284,920.20 = 56,855.70/x
  3. Step 3: Cross multiply
    189,971.10x = 284,920.20 × 56,855.70
  4. Step 4: Simplify right side
    189,971.10x = 16,199,337,415.14
  5. Step 5: Solve for x
    x = 16,199,337,415.14/189,971.10
  6. Step 6: Final answer
    x = 85,272.64

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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.