Home / 145,012.66-217,518.57-39,831.73

Finding the Fourth Proportional to 145,012.66, 217,518.57 and 39,831.73

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Solution

The fourth proportional to 145,012.66, 217,518.57 and 39,831.73 is: 59,747.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,012.66 : 217,518.57 = 39,831.73 : x
  2. Step 2: Convert to fraction form
    145,012.66/217,518.57 = 39,831.73/x
  3. Step 3: Cross multiply
    145,012.66x = 217,518.57 × 39,831.73
  4. Step 4: Simplify right side
    145,012.66x = 8,664,140,950.23
  5. Step 5: Solve for x
    x = 8,664,140,950.23/145,012.66
  6. Step 6: Final answer
    x = 59,747.48

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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.