Home / 127,643.72-191,583.78-64,508.26

Finding the Fourth Proportional to 127,643.72, 191,583.78 and 64,508.26

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Solution

The fourth proportional to 127,643.72, 191,583.78 and 64,508.26 is: 96,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,643.72 : 191,583.78 = 64,508.26 : x
  2. Step 2: Convert to fraction form
    127,643.72/191,583.78 = 64,508.26/x
  3. Step 3: Cross multiply
    127,643.72x = 191,583.78 × 64,508.26
  4. Step 4: Simplify right side
    127,643.72x = 12,358,736,292.02
  5. Step 5: Solve for x
    x = 12,358,736,292.02/127,643.72
  6. Step 6: Final answer
    x = 96,822.13

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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.