Home / 191,916.81-287,791.74-101,939.67

Finding the Fourth Proportional to 191,916.81, 287,791.74 and 101,939.67

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Solution

The fourth proportional to 191,916.81, 287,791.74 and 101,939.67 is: 152,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,916.81 : 287,791.74 = 101,939.67 : x
  2. Step 2: Convert to fraction form
    191,916.81/287,791.74 = 101,939.67/x
  3. Step 3: Cross multiply
    191,916.81x = 287,791.74 × 101,939.67
  4. Step 4: Simplify right side
    191,916.81x = 29,337,395,004.33
  5. Step 5: Solve for x
    x = 29,337,395,004.33/191,916.81
  6. Step 6: Final answer
    x = 152,865.17

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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.