Home / 191,941.20-287,544.60-103,165.20

Finding the Fourth Proportional to 191,941.20, 287,544.60 and 103,165.20

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Solution

The fourth proportional to 191,941.20, 287,544.60 and 103,165.20 is: 154,550.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,941.20 : 287,544.60 = 103,165.20 : x
  2. Step 2: Convert to fraction form
    191,941.20/287,544.60 = 103,165.20/x
  3. Step 3: Cross multiply
    191,941.20x = 287,544.60 × 103,165.20
  4. Step 4: Simplify right side
    191,941.20x = 29,664,596,167.92
  5. Step 5: Solve for x
    x = 29,664,596,167.92/191,941.20
  6. Step 6: Final answer
    x = 154,550.44

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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.