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Finding the Fourth Proportional to 102,777.45, 154,167.87 and 36,218.38

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Solution

The fourth proportional to 102,777.45, 154,167.87 and 36,218.38 is: 54,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,777.45 : 154,167.87 = 36,218.38 : x
  2. Step 2: Convert to fraction form
    102,777.45/154,167.87 = 36,218.38/x
  3. Step 3: Cross multiply
    102,777.45x = 154,167.87 × 36,218.38
  4. Step 4: Simplify right side
    102,777.45x = 5,583,710,538.91
  5. Step 5: Solve for x
    x = 5,583,710,538.91/102,777.45
  6. Step 6: Final answer
    x = 54,328.17

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1.5x scale

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.