Home / 286,776.55-429,913.31-109,165.42

Finding the Fourth Proportional to 286,776.55, 429,913.31 and 109,165.42

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Solution

The fourth proportional to 286,776.55, 429,913.31 and 109,165.42 is: 163,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,776.55 : 429,913.31 = 109,165.42 : x
  2. Step 2: Convert to fraction form
    286,776.55/429,913.31 = 109,165.42/x
  3. Step 3: Cross multiply
    286,776.55x = 429,913.31 × 109,165.42
  4. Step 4: Simplify right side
    286,776.55x = 46,931,667,049.74
  5. Step 5: Solve for x
    x = 46,931,667,049.74/286,776.55
  6. Step 6: Final answer
    x = 163,652.39

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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.