Home / 113,133.12-168,872.64-104,909.76

Finding the Fourth Proportional to 113,133.12, 168,872.64 and 104,909.76

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Solution

The fourth proportional to 113,133.12, 168,872.64 and 104,909.76 is: 156,597.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,133.12 : 168,872.64 = 104,909.76 : x
  2. Step 2: Convert to fraction form
    113,133.12/168,872.64 = 104,909.76/x
  3. Step 3: Cross multiply
    113,133.12x = 168,872.64 × 104,909.76
  4. Step 4: Simplify right side
    113,133.12x = 17,716,388,132.97
  5. Step 5: Solve for x
    x = 17,716,388,132.97/113,133.12
  6. Step 6: Final answer
    x = 156,597.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.