Home / 191,478.45-287,195.79-51,248.01

Finding the Fourth Proportional to 191,478.45, 287,195.79 and 51,248.01

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Solution

The fourth proportional to 191,478.45, 287,195.79 and 51,248.01 is: 76,866.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,478.45 : 287,195.79 = 51,248.01 : x
  2. Step 2: Convert to fraction form
    191,478.45/287,195.79 = 51,248.01/x
  3. Step 3: Cross multiply
    191,478.45x = 287,195.79 × 51,248.01
  4. Step 4: Simplify right side
    191,478.45x = 14,718,212,717.88
  5. Step 5: Solve for x
    x = 14,718,212,717.88/191,478.45
  6. Step 6: Final answer
    x = 76,866.16

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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.