Home / 191,913.26-287,869.88-67,254.26

Finding the Fourth Proportional to 191,913.26, 287,869.88 and 67,254.26

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Solution

The fourth proportional to 191,913.26, 287,869.88 and 67,254.26 is: 100,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,913.26 : 287,869.88 = 67,254.26 : x
  2. Step 2: Convert to fraction form
    191,913.26/287,869.88 = 67,254.26/x
  3. Step 3: Cross multiply
    191,913.26x = 287,869.88 × 67,254.26
  4. Step 4: Simplify right side
    191,913.26x = 19,360,475,755.69
  5. Step 5: Solve for x
    x = 19,360,475,755.69/191,913.26
  6. Step 6: Final answer
    x = 100,881.39

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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.