Home / 102,529.80-153,516.78-53,178.12

Finding the Fourth Proportional to 102,529.80, 153,516.78 and 53,178.12

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Solution

The fourth proportional to 102,529.80, 153,516.78 and 53,178.12 is: 79,623.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,529.80 : 153,516.78 = 53,178.12 : x
  2. Step 2: Convert to fraction form
    102,529.80/153,516.78 = 53,178.12/x
  3. Step 3: Cross multiply
    102,529.80x = 153,516.78 × 53,178.12
  4. Step 4: Simplify right side
    102,529.80x = 8,163,733,748.85
  5. Step 5: Solve for x
    x = 8,163,733,748.85/102,529.80
  6. Step 6: Final answer
    x = 79,623.03

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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.