Home / 98,136.30-147,204.45-92,231.40

Finding the Fourth Proportional to 98,136.30, 147,204.45 and 92,231.40

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Solution

The fourth proportional to 98,136.30, 147,204.45 and 92,231.40 is: 138,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,136.30 : 147,204.45 = 92,231.40 : x
  2. Step 2: Convert to fraction form
    98,136.30/147,204.45 = 92,231.40/x
  3. Step 3: Cross multiply
    98,136.30x = 147,204.45 × 92,231.40
  4. Step 4: Simplify right side
    98,136.30x = 13,576,872,509.73
  5. Step 5: Solve for x
    x = 13,576,872,509.73/98,136.30
  6. Step 6: Final answer
    x = 138,347.10

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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.