Home / 127,637.92-191,456.90-57,435.20

Finding the Fourth Proportional to 127,637.92, 191,456.90 and 57,435.20

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Solution

The fourth proportional to 127,637.92, 191,456.90 and 57,435.20 is: 86,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,637.92 : 191,456.90 = 57,435.20 : x
  2. Step 2: Convert to fraction form
    127,637.92/191,456.90 = 57,435.20/x
  3. Step 3: Cross multiply
    127,637.92x = 191,456.90 × 57,435.20
  4. Step 4: Simplify right side
    127,637.92x = 10,996,365,342.88
  5. Step 5: Solve for x
    x = 10,996,365,342.88/127,637.92
  6. Step 6: Final answer
    x = 86,152.81

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1.5x scale

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.