Home / 286,511.38-429,953.55-109,019.86

Finding the Fourth Proportional to 286,511.38, 429,953.55 and 109,019.86

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Solution

The fourth proportional to 286,511.38, 429,953.55 and 109,019.86 is: 163,600.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,511.38 : 429,953.55 = 109,019.86 : x
  2. Step 2: Convert to fraction form
    286,511.38/429,953.55 = 109,019.86/x
  3. Step 3: Cross multiply
    286,511.38x = 429,953.55 × 109,019.86
  4. Step 4: Simplify right side
    286,511.38x = 46,873,475,827.50
  5. Step 5: Solve for x
    x = 46,873,475,827.50/286,511.38
  6. Step 6: Final answer
    x = 163,600.75

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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.