Home / 454,554.32-681,765.80-138,926.48

Finding the Fourth Proportional to 454,554.32, 681,765.80 and 138,926.48

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Solution

The fourth proportional to 454,554.32, 681,765.80 and 138,926.48 is: 208,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,554.32 : 681,765.80 = 138,926.48 : x
  2. Step 2: Convert to fraction form
    454,554.32/681,765.80 = 138,926.48/x
  3. Step 3: Cross multiply
    454,554.32x = 681,765.80 × 138,926.48
  4. Step 4: Simplify right side
    454,554.32x = 94,715,318,674.92
  5. Step 5: Solve for x
    x = 94,715,318,674.92/454,554.32
  6. Step 6: Final answer
    x = 208,369.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.