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Finding the Fourth Proportional to 104,100.59, 143,658.79 and 56,353.90

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Solution

The fourth proportional to 104,100.59, 143,658.79 and 56,353.90 is: 77,768.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,100.59 : 143,658.79 = 56,353.90 : x
  2. Step 2: Convert to fraction form
    104,100.59/143,658.79 = 56,353.90/x
  3. Step 3: Cross multiply
    104,100.59x = 143,658.79 × 56,353.90
  4. Step 4: Simplify right side
    104,100.59x = 8,095,733,417.65
  5. Step 5: Solve for x
    x = 8,095,733,417.65/104,100.59
  6. Step 6: Final answer
    x = 77,768.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.