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Finding the Fourth Proportional to 103,260.81, 142,482.99 and 60,813.57

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Solution

The fourth proportional to 103,260.81, 142,482.99 and 60,813.57 is: 83,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,260.81 : 142,482.99 = 60,813.57 : x
  2. Step 2: Convert to fraction form
    103,260.81/142,482.99 = 60,813.57/x
  3. Step 3: Cross multiply
    103,260.81x = 142,482.99 × 60,813.57
  4. Step 4: Simplify right side
    103,260.81x = 8,664,899,286.17
  5. Step 5: Solve for x
    x = 8,664,899,286.17/103,260.81
  6. Step 6: Final answer
    x = 83,912.76

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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.