Home / 286,142.22-429,217.38-86,464.26

Finding the Fourth Proportional to 286,142.22, 429,217.38 and 86,464.26

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Solution

The fourth proportional to 286,142.22, 429,217.38 and 86,464.26 is: 129,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,142.22 : 429,217.38 = 86,464.26 : x
  2. Step 2: Convert to fraction form
    286,142.22/429,217.38 = 86,464.26/x
  3. Step 3: Cross multiply
    286,142.22x = 429,217.38 × 86,464.26
  4. Step 4: Simplify right side
    286,142.22x = 37,111,963,140.84
  5. Step 5: Solve for x
    x = 37,111,963,140.84/286,142.22
  6. Step 6: Final answer
    x = 129,697.61

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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.