Home / 191,416.19-287,102.41-51,185.75

Finding the Fourth Proportional to 191,416.19, 287,102.41 and 51,185.75

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Solution

The fourth proportional to 191,416.19, 287,102.41 and 51,185.75 is: 76,772.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,416.19 : 287,102.41 = 51,185.75 : x
  2. Step 2: Convert to fraction form
    191,416.19/287,102.41 = 51,185.75/x
  3. Step 3: Cross multiply
    191,416.19x = 287,102.41 × 51,185.75
  4. Step 4: Simplify right side
    191,416.19x = 14,695,550,619.18
  5. Step 5: Solve for x
    x = 14,695,550,619.18/191,416.19
  6. Step 6: Final answer
    x = 76,772.77

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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.