Home / 191,491.13-287,236.69-51,246.11

Finding the Fourth Proportional to 191,491.13, 287,236.69 and 51,246.11

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Solution

The fourth proportional to 191,491.13, 287,236.69 and 51,246.11 is: 76,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,491.13 : 287,236.69 = 51,246.11 : x
  2. Step 2: Convert to fraction form
    191,491.13/287,236.69 = 51,246.11/x
  3. Step 3: Cross multiply
    191,491.13x = 287,236.69 × 51,246.11
  4. Step 4: Simplify right side
    191,491.13x = 14,719,763,011.78
  5. Step 5: Solve for x
    x = 14,719,763,011.78/191,491.13
  6. Step 6: Final answer
    x = 76,869.16

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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.