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Finding the Fourth Proportional to 191,014.26, 286,530.90 and 72,694.77

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Solution

The fourth proportional to 191,014.26, 286,530.90 and 72,694.77 is: 109,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,014.26 : 286,530.90 = 72,694.77 : x
  2. Step 2: Convert to fraction form
    191,014.26/286,530.90 = 72,694.77/x
  3. Step 3: Cross multiply
    191,014.26x = 286,530.90 × 72,694.77
  4. Step 4: Simplify right side
    191,014.26x = 20,829,297,873.39
  5. Step 5: Solve for x
    x = 20,829,297,873.39/191,014.26
  6. Step 6: Final answer
    x = 109,045.77

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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.