Home / 117,475.11-161,996.49-100,535.58

Finding the Fourth Proportional to 117,475.11, 161,996.49 and 100,535.58

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Solution

The fourth proportional to 117,475.11, 161,996.49 and 100,535.58 is: 138,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,475.11 : 161,996.49 = 100,535.58 : x
  2. Step 2: Convert to fraction form
    117,475.11/161,996.49 = 100,535.58/x
  3. Step 3: Cross multiply
    117,475.11x = 161,996.49 × 100,535.58
  4. Step 4: Simplify right side
    117,475.11x = 16,286,411,080.11
  5. Step 5: Solve for x
    x = 16,286,411,080.11/117,475.11
  6. Step 6: Final answer
    x = 138,637.12

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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.