Home / 127,723.40-191,585.10-38,977.36

Finding the Fourth Proportional to 127,723.40, 191,585.10 and 38,977.36

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Solution

The fourth proportional to 127,723.40, 191,585.10 and 38,977.36 is: 58,466.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,723.40 : 191,585.10 = 38,977.36 : x
  2. Step 2: Convert to fraction form
    127,723.40/191,585.10 = 38,977.36/x
  3. Step 3: Cross multiply
    127,723.40x = 191,585.10 × 38,977.36
  4. Step 4: Simplify right side
    127,723.40x = 7,467,481,413.34
  5. Step 5: Solve for x
    x = 7,467,481,413.34/127,723.40
  6. Step 6: Final answer
    x = 58,466.04

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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.