Home / 104,889.12-144,748.55-57,142.46

Finding the Fourth Proportional to 104,889.12, 144,748.55 and 57,142.46

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Solution

The fourth proportional to 104,889.12, 144,748.55 and 57,142.46 is: 78,857.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,889.12 : 144,748.55 = 57,142.46 : x
  2. Step 2: Convert to fraction form
    104,889.12/144,748.55 = 57,142.46/x
  3. Step 3: Cross multiply
    104,889.12x = 144,748.55 × 57,142.46
  4. Step 4: Simplify right side
    104,889.12x = 8,271,287,218.98
  5. Step 5: Solve for x
    x = 8,271,287,218.98/104,889.12
  6. Step 6: Final answer
    x = 78,857.44

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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.