Home / 191,733.40-287,600.10-108,789.40

Finding the Fourth Proportional to 191,733.40, 287,600.10 and 108,789.40

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Solution

The fourth proportional to 191,733.40, 287,600.10 and 108,789.40 is: 163,184.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,733.40 : 287,600.10 = 108,789.40 : x
  2. Step 2: Convert to fraction form
    191,733.40/287,600.10 = 108,789.40/x
  3. Step 3: Cross multiply
    191,733.40x = 287,600.10 × 108,789.40
  4. Step 4: Simplify right side
    191,733.40x = 31,287,842,318.94
  5. Step 5: Solve for x
    x = 31,287,842,318.94/191,733.40
  6. Step 6: Final answer
    x = 163,184.10

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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.