Home / 103,157.71-142,226.82-73,724.62

Finding the Fourth Proportional to 103,157.71, 142,226.82 and 73,724.62

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Solution

The fourth proportional to 103,157.71, 142,226.82 and 73,724.62 is: 101,646.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,157.71 : 142,226.82 = 73,724.62 : x
  2. Step 2: Convert to fraction form
    103,157.71/142,226.82 = 73,724.62/x
  3. Step 3: Cross multiply
    103,157.71x = 142,226.82 × 73,724.62
  4. Step 4: Simplify right side
    103,157.71x = 10,485,618,258.31
  5. Step 5: Solve for x
    x = 10,485,618,258.31/103,157.71
  6. Step 6: Final answer
    x = 101,646.48

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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.