Home / 191,417.77-287,126.66-51,172.75

Finding the Fourth Proportional to 191,417.77, 287,126.66 and 51,172.75

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Solution

The fourth proportional to 191,417.77, 287,126.66 and 51,172.75 is: 76,759.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,417.77 : 287,126.66 = 51,172.75 : x
  2. Step 2: Convert to fraction form
    191,417.77/287,126.66 = 51,172.75/x
  3. Step 3: Cross multiply
    191,417.77x = 287,126.66 × 51,172.75
  4. Step 4: Simplify right side
    191,417.77x = 14,693,060,790.52
  5. Step 5: Solve for x
    x = 14,693,060,790.52/191,417.77
  6. Step 6: Final answer
    x = 76,759.13

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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.