Home / 286,623.27-429,939.18-109,140.12

Finding the Fourth Proportional to 286,623.27, 429,939.18 and 109,140.12

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Solution

The fourth proportional to 286,623.27, 429,939.18 and 109,140.12 is: 163,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,623.27 : 429,939.18 = 109,140.12 : x
  2. Step 2: Convert to fraction form
    286,623.27/429,939.18 = 109,140.12/x
  3. Step 3: Cross multiply
    286,623.27x = 429,939.18 × 109,140.12
  4. Step 4: Simplify right side
    286,623.27x = 46,923,613,697.90
  5. Step 5: Solve for x
    x = 46,923,613,697.90/286,623.27
  6. Step 6: Final answer
    x = 163,711.81

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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.