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Finding the Fourth Proportional to 191,014.49, 286,531.25 and 72,695

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Solution

The fourth proportional to 191,014.49, 286,531.25 and 72,695 is: 109,046.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,014.49 : 286,531.25 = 72,695 : x
  2. Step 2: Convert to fraction form
    191,014.49/286,531.25 = 72,695/x
  3. Step 3: Cross multiply
    191,014.49x = 286,531.25 × 72,695
  4. Step 4: Simplify right side
    191,014.49x = 20,829,389,400.49
  5. Step 5: Solve for x
    x = 20,829,389,400.49/191,014.49
  6. Step 6: Final answer
    x = 109,046.12

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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.