Home / 98,127.20-146,899.20-87,629.60

Finding the Fourth Proportional to 98,127.20, 146,899.20 and 87,629.60

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Solution

The fourth proportional to 98,127.20, 146,899.20 and 87,629.60 is: 131,184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,127.20 : 146,899.20 = 87,629.60 : x
  2. Step 2: Convert to fraction form
    98,127.20/146,899.20 = 87,629.60/x
  3. Step 3: Cross multiply
    98,127.20x = 146,899.20 × 87,629.60
  4. Step 4: Simplify right side
    98,127.20x = 12,872,718,136.32
  5. Step 5: Solve for x
    x = 12,872,718,136.32/98,127.20
  6. Step 6: Final answer
    x = 131,184.00

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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.