Home / 285,187.56-393,554.07-157,860.42

Finding the Fourth Proportional to 285,187.56, 393,554.07 and 157,860.42

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Solution

The fourth proportional to 285,187.56, 393,554.07 and 157,860.42 is: 217,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,187.56 : 393,554.07 = 157,860.42 : x
  2. Step 2: Convert to fraction form
    285,187.56/393,554.07 = 157,860.42/x
  3. Step 3: Cross multiply
    285,187.56x = 393,554.07 × 157,860.42
  4. Step 4: Simplify right side
    285,187.56x = 62,126,610,782.91
  5. Step 5: Solve for x
    x = 62,126,610,782.91/285,187.56
  6. Step 6: Final answer
    x = 217,844.74

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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.