Home / 144,581.12-216,849.36-39,408.56

Finding the Fourth Proportional to 144,581.12, 216,849.36 and 39,408.56

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Solution

The fourth proportional to 144,581.12, 216,849.36 and 39,408.56 is: 59,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,581.12 : 216,849.36 = 39,408.56 : x
  2. Step 2: Convert to fraction form
    144,581.12/216,849.36 = 39,408.56/x
  3. Step 3: Cross multiply
    144,581.12x = 216,849.36 × 39,408.56
  4. Step 4: Simplify right side
    144,581.12x = 8,545,721,014.52
  5. Step 5: Solve for x
    x = 8,545,721,014.52/144,581.12
  6. Step 6: Final answer
    x = 59,106.76

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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.