Home / 191,433.40-287,150.08-51,188.38

Finding the Fourth Proportional to 191,433.40, 287,150.08 and 51,188.38

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Solution

The fourth proportional to 191,433.40, 287,150.08 and 51,188.38 is: 76,782.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,433.40 : 287,150.08 = 51,188.38 : x
  2. Step 2: Convert to fraction form
    191,433.40/287,150.08 = 51,188.38/x
  3. Step 3: Cross multiply
    191,433.40x = 287,150.08 × 51,188.38
  4. Step 4: Simplify right side
    191,433.40x = 14,698,747,412.07
  5. Step 5: Solve for x
    x = 14,698,747,412.07/191,433.40
  6. Step 6: Final answer
    x = 76,782.56

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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.