Home / 127,769.47-191,663.48-51,831.56

Finding the Fourth Proportional to 127,769.47, 191,663.48 and 51,831.56

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Solution

The fourth proportional to 127,769.47, 191,663.48 and 51,831.56 is: 77,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,769.47 : 191,663.48 = 51,831.56 : x
  2. Step 2: Convert to fraction form
    127,769.47/191,663.48 = 51,831.56/x
  3. Step 3: Cross multiply
    127,769.47x = 191,663.48 × 51,831.56
  4. Step 4: Simplify right side
    127,769.47x = 9,934,217,772.17
  5. Step 5: Solve for x
    x = 9,934,217,772.17/127,769.47
  6. Step 6: Final answer
    x = 77,751.11

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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.