Home / 286,144.52-429,257.01-86,442.26

Finding the Fourth Proportional to 286,144.52, 429,257.01 and 86,442.26

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Solution

The fourth proportional to 286,144.52, 429,257.01 and 86,442.26 is: 129,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,144.52 : 429,257.01 = 86,442.26 : x
  2. Step 2: Convert to fraction form
    286,144.52/429,257.01 = 86,442.26/x
  3. Step 3: Cross multiply
    286,144.52x = 429,257.01 × 86,442.26
  4. Step 4: Simplify right side
    286,144.52x = 37,105,946,065.24
  5. Step 5: Solve for x
    x = 37,105,946,065.24/286,144.52
  6. Step 6: Final answer
    x = 129,675.54

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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.