Home / 113,819.52-157,052.16-63,518.40

Finding the Fourth Proportional to 113,819.52, 157,052.16 and 63,518.40

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Solution

The fourth proportional to 113,819.52, 157,052.16 and 63,518.40 is: 87,644.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,819.52 : 157,052.16 = 63,518.40 : x
  2. Step 2: Convert to fraction form
    113,819.52/157,052.16 = 63,518.40/x
  3. Step 3: Cross multiply
    113,819.52x = 157,052.16 × 63,518.40
  4. Step 4: Simplify right side
    113,819.52x = 9,975,701,919.74
  5. Step 5: Solve for x
    x = 9,975,701,919.74/113,819.52
  6. Step 6: Final answer
    x = 87,644.91

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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.