Home / 109,751.40-151,453.82-64,428.66

Finding the Fourth Proportional to 109,751.40, 151,453.82 and 64,428.66

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Solution

The fourth proportional to 109,751.40, 151,453.82 and 64,428.66 is: 88,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,751.40 : 151,453.82 = 64,428.66 : x
  2. Step 2: Convert to fraction form
    109,751.40/151,453.82 = 64,428.66/x
  3. Step 3: Cross multiply
    109,751.40x = 151,453.82 × 64,428.66
  4. Step 4: Simplify right side
    109,751.40x = 9,757,965,595.07
  5. Step 5: Solve for x
    x = 9,757,965,595.07/109,751.40
  6. Step 6: Final answer
    x = 88,909.72

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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.