Home / 98,020.21-147,049.46-31,455.22

Finding the Fourth Proportional to 98,020.21, 147,049.46 and 31,455.22

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Solution

The fourth proportional to 98,020.21, 147,049.46 and 31,455.22 is: 47,188.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,020.21 : 147,049.46 = 31,455.22 : x
  2. Step 2: Convert to fraction form
    98,020.21/147,049.46 = 31,455.22/x
  3. Step 3: Cross multiply
    98,020.21x = 147,049.46 × 31,455.22
  4. Step 4: Simplify right side
    98,020.21x = 4,625,473,377.63
  5. Step 5: Solve for x
    x = 4,625,473,377.63/98,020.21
  6. Step 6: Final answer
    x = 47,188.98

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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.