Home / 106,989.78-147,644.09-59,242.10

Finding the Fourth Proportional to 106,989.78, 147,644.09 and 59,242.10

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Solution

The fourth proportional to 106,989.78, 147,644.09 and 59,242.10 is: 81,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,989.78 : 147,644.09 = 59,242.10 : x
  2. Step 2: Convert to fraction form
    106,989.78/147,644.09 = 59,242.10/x
  3. Step 3: Cross multiply
    106,989.78x = 147,644.09 × 59,242.10
  4. Step 4: Simplify right side
    106,989.78x = 8,746,745,944.19
  5. Step 5: Solve for x
    x = 8,746,745,944.19/106,989.78
  6. Step 6: Final answer
    x = 81,753.10

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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.