Home / 100,269.41-138,358.63-59,968.47

Finding the Fourth Proportional to 100,269.41, 138,358.63 and 59,968.47

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Solution

The fourth proportional to 100,269.41, 138,358.63 and 59,968.47 is: 82,748.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,269.41 : 138,358.63 = 59,968.47 : x
  2. Step 2: Convert to fraction form
    100,269.41/138,358.63 = 59,968.47/x
  3. Step 3: Cross multiply
    100,269.41x = 138,358.63 × 59,968.47
  4. Step 4: Simplify right side
    100,269.41x = 8,297,155,167.93
  5. Step 5: Solve for x
    x = 8,297,155,167.93/100,269.41
  6. Step 6: Final answer
    x = 82,748.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.