Home / 99,898.22-137,859.54-55,186.22

Finding the Fourth Proportional to 99,898.22, 137,859.54 and 55,186.22

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Solution

The fourth proportional to 99,898.22, 137,859.54 and 55,186.22 is: 76,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,898.22 : 137,859.54 = 55,186.22 : x
  2. Step 2: Convert to fraction form
    99,898.22/137,859.54 = 55,186.22/x
  3. Step 3: Cross multiply
    99,898.22x = 137,859.54 × 55,186.22
  4. Step 4: Simplify right side
    99,898.22x = 7,607,946,903.54
  5. Step 5: Solve for x
    x = 7,607,946,903.54/99,898.22
  6. Step 6: Final answer
    x = 76,156.98

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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.