Home / 104,909.78-144,777.21-57,165.14

Finding the Fourth Proportional to 104,909.78, 144,777.21 and 57,165.14

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Solution

The fourth proportional to 104,909.78, 144,777.21 and 57,165.14 is: 78,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,909.78 : 144,777.21 = 57,165.14 : x
  2. Step 2: Convert to fraction form
    104,909.78/144,777.21 = 57,165.14/x
  3. Step 3: Cross multiply
    104,909.78x = 144,777.21 × 57,165.14
  4. Step 4: Simplify right side
    104,909.78x = 8,276,209,478.46
  5. Step 5: Solve for x
    x = 8,276,209,478.46/104,909.78
  6. Step 6: Final answer
    x = 78,888.83

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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.