Home / 127,665.48-191,497.92-38,919.72

Finding the Fourth Proportional to 127,665.48, 191,497.92 and 38,919.72

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Solution

The fourth proportional to 127,665.48, 191,497.92 and 38,919.72 is: 58,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,665.48 : 191,497.92 = 38,919.72 : x
  2. Step 2: Convert to fraction form
    127,665.48/191,497.92 = 38,919.72/x
  3. Step 3: Cross multiply
    127,665.48x = 191,497.92 × 38,919.72
  4. Step 4: Simplify right side
    127,665.48x = 7,453,045,426.98
  5. Step 5: Solve for x
    x = 7,453,045,426.98/127,665.48
  6. Step 6: Final answer
    x = 58,379.49

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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.