Home / 113,815.52-157,046.64-63,514.40

Finding the Fourth Proportional to 113,815.52, 157,046.64 and 63,514.40

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Solution

The fourth proportional to 113,815.52, 157,046.64 and 63,514.40 is: 87,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,815.52 : 157,046.64 = 63,514.40 : x
  2. Step 2: Convert to fraction form
    113,815.52/157,046.64 = 63,514.40/x
  3. Step 3: Cross multiply
    113,815.52x = 157,046.64 × 63,514.40
  4. Step 4: Simplify right side
    113,815.52x = 9,974,723,111.62
  5. Step 5: Solve for x
    x = 9,974,723,111.62/113,815.52
  6. Step 6: Final answer
    x = 87,639.39

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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.