Home / 103,511.69-155,267.36-32,439.80

Finding the Fourth Proportional to 103,511.69, 155,267.36 and 32,439.80

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Solution

The fourth proportional to 103,511.69, 155,267.36 and 32,439.80 is: 48,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,511.69 : 155,267.36 = 32,439.80 : x
  2. Step 2: Convert to fraction form
    103,511.69/155,267.36 = 32,439.80/x
  3. Step 3: Cross multiply
    103,511.69x = 155,267.36 × 32,439.80
  4. Step 4: Simplify right side
    103,511.69x = 5,036,841,166.39
  5. Step 5: Solve for x
    x = 5,036,841,166.39/103,511.69
  6. Step 6: Final answer
    x = 48,659.64

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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.