Home / 98,290.64-147,405.72-28,151.12

Finding the Fourth Proportional to 98,290.64, 147,405.72 and 28,151.12

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Solution

The fourth proportional to 98,290.64, 147,405.72 and 28,151.12 is: 42,218.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,290.64 : 147,405.72 = 28,151.12 : x
  2. Step 2: Convert to fraction form
    98,290.64/147,405.72 = 28,151.12/x
  3. Step 3: Cross multiply
    98,290.64x = 147,405.72 × 28,151.12
  4. Step 4: Simplify right side
    98,290.64x = 4,149,636,112.41
  5. Step 5: Solve for x
    x = 4,149,636,112.41/98,290.64
  6. Step 6: Final answer
    x = 42,218.02

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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.