Home / 139,528.94-209,288.70-60,643.17

Finding the Fourth Proportional to 139,528.94, 209,288.70 and 60,643.17

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Solution

The fourth proportional to 139,528.94, 209,288.70 and 60,643.17 is: 90,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,528.94 : 209,288.70 = 60,643.17 : x
  2. Step 2: Convert to fraction form
    139,528.94/209,288.70 = 60,643.17/x
  3. Step 3: Cross multiply
    139,528.94x = 209,288.70 × 60,643.17
  4. Step 4: Simplify right side
    139,528.94x = 12,691,930,213.18
  5. Step 5: Solve for x
    x = 12,691,930,213.18/139,528.94
  6. Step 6: Final answer
    x = 90,962.71

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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.