Home / 98,121.32-147,183.36-28,000.64

Finding the Fourth Proportional to 98,121.32, 147,183.36 and 28,000.64

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Solution

The fourth proportional to 98,121.32, 147,183.36 and 28,000.64 is: 42,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,121.32 : 147,183.36 = 28,000.64 : x
  2. Step 2: Convert to fraction form
    98,121.32/147,183.36 = 28,000.64/x
  3. Step 3: Cross multiply
    98,121.32x = 147,183.36 × 28,000.64
  4. Step 4: Simplify right side
    98,121.32x = 4,121,228,277.35
  5. Step 5: Solve for x
    x = 4,121,228,277.35/98,121.32
  6. Step 6: Final answer
    x = 42,001.35

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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.