Home / 98,416.12-147,645.80-31,863.12

Finding the Fourth Proportional to 98,416.12, 147,645.80 and 31,863.12

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Solution

The fourth proportional to 98,416.12, 147,645.80 and 31,863.12 is: 47,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,416.12 : 147,645.80 = 31,863.12 : x
  2. Step 2: Convert to fraction form
    98,416.12/147,645.80 = 31,863.12/x
  3. Step 3: Cross multiply
    98,416.12x = 147,645.80 × 31,863.12
  4. Step 4: Simplify right side
    98,416.12x = 4,704,455,842.90
  5. Step 5: Solve for x
    x = 4,704,455,842.90/98,416.12
  6. Step 6: Final answer
    x = 47,801.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.