Home / 101,048.18-139,447.58-55,726.25

Finding the Fourth Proportional to 101,048.18, 139,447.58 and 55,726.25

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Solution

The fourth proportional to 101,048.18, 139,447.58 and 55,726.25 is: 76,902.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,048.18 : 139,447.58 = 55,726.25 : x
  2. Step 2: Convert to fraction form
    101,048.18/139,447.58 = 55,726.25/x
  3. Step 3: Cross multiply
    101,048.18x = 139,447.58 × 55,726.25
  4. Step 4: Simplify right side
    101,048.18x = 7,770,889,729.11
  5. Step 5: Solve for x
    x = 7,770,889,729.11/101,048.18
  6. Step 6: Final answer
    x = 76,902.82

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1.5x scale

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.