Home / 145,742.93-218,565.57-55,764.71

Finding the Fourth Proportional to 145,742.93, 218,565.57 and 55,764.71

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Solution

The fourth proportional to 145,742.93, 218,565.57 and 55,764.71 is: 83,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,742.93 : 218,565.57 = 55,764.71 : x
  2. Step 2: Convert to fraction form
    145,742.93/218,565.57 = 55,764.71/x
  3. Step 3: Cross multiply
    145,742.93x = 218,565.57 × 55,764.71
  4. Step 4: Simplify right side
    145,742.93x = 12,188,246,290.55
  5. Step 5: Solve for x
    x = 12,188,246,290.55/145,742.93
  6. Step 6: Final answer
    x = 83,628.39

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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.