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Finding the Fourth Proportional to 89,113.77, 133,670.66 and 83,208.87

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Solution

The fourth proportional to 89,113.77, 133,670.66 and 83,208.87 is: 124,813.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,113.77 : 133,670.66 = 83,208.87 : x
  2. Step 2: Convert to fraction form
    89,113.77/133,670.66 = 83,208.87/x
  3. Step 3: Cross multiply
    89,113.77x = 133,670.66 × 83,208.87
  4. Step 4: Simplify right side
    89,113.77x = 11,122,584,154.71
  5. Step 5: Solve for x
    x = 11,122,584,154.71/89,113.77
  6. Step 6: Final answer
    x = 124,813.31

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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.