Home / 145,586.40-218,249.68-56,819.28

Finding the Fourth Proportional to 145,586.40, 218,249.68 and 56,819.28

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Solution

The fourth proportional to 145,586.40, 218,249.68 and 56,819.28 is: 85,178.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,586.40 : 218,249.68 = 56,819.28 : x
  2. Step 2: Convert to fraction form
    145,586.40/218,249.68 = 56,819.28/x
  3. Step 3: Cross multiply
    145,586.40x = 218,249.68 × 56,819.28
  4. Step 4: Simplify right side
    145,586.40x = 12,400,789,677.83
  5. Step 5: Solve for x
    x = 12,400,789,677.83/145,586.40
  6. Step 6: Final answer
    x = 85,178.21

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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.