Home / 100,726.76-139,004.26-56,016.36

Finding the Fourth Proportional to 100,726.76, 139,004.26 and 56,016.36

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Solution

The fourth proportional to 100,726.76, 139,004.26 and 56,016.36 is: 77,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,726.76 : 139,004.26 = 56,016.36 : x
  2. Step 2: Convert to fraction form
    100,726.76/139,004.26 = 56,016.36/x
  3. Step 3: Cross multiply
    100,726.76x = 139,004.26 × 56,016.36
  4. Step 4: Simplify right side
    100,726.76x = 7,786,512,669.69
  5. Step 5: Solve for x
    x = 7,786,512,669.69/100,726.76
  6. Step 6: Final answer
    x = 77,303.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.