Home / 98,575.20-147,603.60-72,136.80

Finding the Fourth Proportional to 98,575.20, 147,603.60 and 72,136.80

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Solution

The fourth proportional to 98,575.20, 147,603.60 and 72,136.80 is: 108,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.20 : 147,603.60 = 72,136.80 : x
  2. Step 2: Convert to fraction form
    98,575.20/147,603.60 = 72,136.80/x
  3. Step 3: Cross multiply
    98,575.20x = 147,603.60 × 72,136.80
  4. Step 4: Simplify right side
    98,575.20x = 10,647,651,372.48
  5. Step 5: Solve for x
    x = 10,647,651,372.48/98,575.20
  6. Step 6: Final answer
    x = 108,015.52

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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.