Home / 106,538.54-147,018.20-61,184.55

Finding the Fourth Proportional to 106,538.54, 147,018.20 and 61,184.55

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Solution

The fourth proportional to 106,538.54, 147,018.20 and 61,184.55 is: 84,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,538.54 : 147,018.20 = 61,184.55 : x
  2. Step 2: Convert to fraction form
    106,538.54/147,018.20 = 61,184.55/x
  3. Step 3: Cross multiply
    106,538.54x = 147,018.20 × 61,184.55
  4. Step 4: Simplify right side
    106,538.54x = 8,995,242,102.89
  5. Step 5: Solve for x
    x = 8,995,242,102.89/106,538.54
  6. Step 6: Final answer
    x = 84,431.81

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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.