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Finding the Fourth Proportional to 99,519.80, 149,279.70 and 94,927.10

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Solution

The fourth proportional to 99,519.80, 149,279.70 and 94,927.10 is: 142,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,519.80 : 149,279.70 = 94,927.10 : x
  2. Step 2: Convert to fraction form
    99,519.80/149,279.70 = 94,927.10/x
  3. Step 3: Cross multiply
    99,519.80x = 149,279.70 × 94,927.10
  4. Step 4: Simplify right side
    99,519.80x = 14,170,689,009.87
  5. Step 5: Solve for x
    x = 14,170,689,009.87/99,519.80
  6. Step 6: Final answer
    x = 142,390.65

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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.