Home / 258,353.48-356,532.09-142,071.86

Finding the Fourth Proportional to 258,353.48, 356,532.09 and 142,071.86

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Solution

The fourth proportional to 258,353.48, 356,532.09 and 142,071.86 is: 196,061.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,353.48 : 356,532.09 = 142,071.86 : x
  2. Step 2: Convert to fraction form
    258,353.48/356,532.09 = 142,071.86/x
  3. Step 3: Cross multiply
    258,353.48x = 356,532.09 × 142,071.86
  4. Step 4: Simplify right side
    258,353.48x = 50,653,177,175.99
  5. Step 5: Solve for x
    x = 50,653,177,175.99/258,353.48
  6. Step 6: Final answer
    x = 196,061.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.