Home / 251,538.12-347,124.78-136,817.69

Finding the Fourth Proportional to 251,538.12, 347,124.78 and 136,817.69

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Solution

The fourth proportional to 251,538.12, 347,124.78 and 136,817.69 is: 188,809.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,538.12 : 347,124.78 = 136,817.69 : x
  2. Step 2: Convert to fraction form
    251,538.12/347,124.78 = 136,817.69/x
  3. Step 3: Cross multiply
    251,538.12x = 347,124.78 × 136,817.69
  4. Step 4: Simplify right side
    251,538.12x = 47,492,808,805.73
  5. Step 5: Solve for x
    x = 47,492,808,805.73/251,538.12
  6. Step 6: Final answer
    x = 188,809.59

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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.