Home / 100,373.27-138,516.93-55,048.50

Finding the Fourth Proportional to 100,373.27, 138,516.93 and 55,048.50

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Solution

The fourth proportional to 100,373.27, 138,516.93 and 55,048.50 is: 75,967.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,373.27 : 138,516.93 = 55,048.50 : x
  2. Step 2: Convert to fraction form
    100,373.27/138,516.93 = 55,048.50/x
  3. Step 3: Cross multiply
    100,373.27x = 138,516.93 × 55,048.50
  4. Step 4: Simplify right side
    100,373.27x = 7,625,149,221.11
  5. Step 5: Solve for x
    x = 7,625,149,221.11/100,373.27
  6. Step 6: Final answer
    x = 75,967.93

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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.