Home / 286,425.26-429,835.12-99,436.76

Finding the Fourth Proportional to 286,425.26, 429,835.12 and 99,436.76

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Solution

The fourth proportional to 286,425.26, 429,835.12 and 99,436.76 is: 149,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,425.26 : 429,835.12 = 99,436.76 : x
  2. Step 2: Convert to fraction form
    286,425.26/429,835.12 = 99,436.76/x
  3. Step 3: Cross multiply
    286,425.26x = 429,835.12 × 99,436.76
  4. Step 4: Simplify right side
    286,425.26x = 42,741,411,667.01
  5. Step 5: Solve for x
    x = 42,741,411,667.01/286,425.26
  6. Step 6: Final answer
    x = 149,223.61

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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.