Home / 98,261.04-147,396.60-28,138.50

Finding the Fourth Proportional to 98,261.04, 147,396.60 and 28,138.50

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Solution

The fourth proportional to 98,261.04, 147,396.60 and 28,138.50 is: 42,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,261.04 : 147,396.60 = 28,138.50 : x
  2. Step 2: Convert to fraction form
    98,261.04/147,396.60 = 28,138.50/x
  3. Step 3: Cross multiply
    98,261.04x = 147,396.60 × 28,138.50
  4. Step 4: Simplify right side
    98,261.04x = 4,147,519,229.10
  5. Step 5: Solve for x
    x = 4,147,519,229.10/98,261.04
  6. Step 6: Final answer
    x = 42,209.19

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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.