Home / 191,542.20-287,214.87-102,870.28

Finding the Fourth Proportional to 191,542.20, 287,214.87 and 102,870.28

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Solution

The fourth proportional to 191,542.20, 287,214.87 and 102,870.28 is: 154,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,542.20 : 287,214.87 = 102,870.28 : x
  2. Step 2: Convert to fraction form
    191,542.20/287,214.87 = 102,870.28/x
  3. Step 3: Cross multiply
    191,542.20x = 287,214.87 × 102,870.28
  4. Step 4: Simplify right side
    191,542.20x = 29,545,874,097.06
  5. Step 5: Solve for x
    x = 29,545,874,097.06/191,542.20
  6. Step 6: Final answer
    x = 154,252.56

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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.