Home / 454,055.86-681,081.90-138,511.72

Finding the Fourth Proportional to 454,055.86, 681,081.90 and 138,511.72

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Solution

The fourth proportional to 454,055.86, 681,081.90 and 138,511.72 is: 207,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,055.86 : 681,081.90 = 138,511.72 : x
  2. Step 2: Convert to fraction form
    454,055.86/681,081.90 = 138,511.72/x
  3. Step 3: Cross multiply
    454,055.86x = 681,081.90 × 138,511.72
  4. Step 4: Simplify right side
    454,055.86x = 94,337,825,429.87
  5. Step 5: Solve for x
    x = 94,337,825,429.87/454,055.86
  6. Step 6: Final answer
    x = 207,767.00

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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.