Home / 127,965.06-191,947.60-65,595.78

Finding the Fourth Proportional to 127,965.06, 191,947.60 and 65,595.78

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Solution

The fourth proportional to 127,965.06, 191,947.60 and 65,595.78 is: 98,393.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965.06 : 191,947.60 = 65,595.78 : x
  2. Step 2: Convert to fraction form
    127,965.06/191,947.60 = 65,595.78/x
  3. Step 3: Cross multiply
    127,965.06x = 191,947.60 × 65,595.78
  4. Step 4: Simplify right side
    127,965.06x = 12,590,952,541.13
  5. Step 5: Solve for x
    x = 12,590,952,541.13/127,965.06
  6. Step 6: Final answer
    x = 98,393.68

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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.