Home / 98,120.82-147,182.61-28,000.14

Finding the Fourth Proportional to 98,120.82, 147,182.61 and 28,000.14

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Solution

The fourth proportional to 98,120.82, 147,182.61 and 28,000.14 is: 42,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,120.82 : 147,182.61 = 28,000.14 : x
  2. Step 2: Convert to fraction form
    98,120.82/147,182.61 = 28,000.14/x
  3. Step 3: Cross multiply
    98,120.82x = 147,182.61 × 28,000.14
  4. Step 4: Simplify right side
    98,120.82x = 4,121,133,685.57
  5. Step 5: Solve for x
    x = 4,121,133,685.57/98,120.82
  6. Step 6: Final answer
    x = 42,000.60

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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.