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Finding the Fourth Proportional to 104,000.55, 143,520.78 and 56,253.88

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Solution

The fourth proportional to 104,000.55, 143,520.78 and 56,253.88 is: 77,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,000.55 : 143,520.78 = 56,253.88 : x
  2. Step 2: Convert to fraction form
    104,000.55/143,520.78 = 56,253.88/x
  3. Step 3: Cross multiply
    104,000.55x = 143,520.78 × 56,253.88
  4. Step 4: Simplify right side
    104,000.55x = 8,073,600,735.63
  5. Step 5: Solve for x
    x = 8,073,600,735.63/104,000.55
  6. Step 6: Final answer
    x = 77,630.37

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1.5x scale

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.