Home / 145,856.69-218,821.94-40,675.66

Finding the Fourth Proportional to 145,856.69, 218,821.94 and 40,675.66

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Solution

The fourth proportional to 145,856.69, 218,821.94 and 40,675.66 is: 61,023.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,856.69 : 218,821.94 = 40,675.66 : x
  2. Step 2: Convert to fraction form
    145,856.69/218,821.94 = 40,675.66/x
  3. Step 3: Cross multiply
    145,856.69x = 218,821.94 × 40,675.66
  4. Step 4: Simplify right side
    145,856.69x = 8,900,726,831.98
  5. Step 5: Solve for x
    x = 8,900,726,831.98/145,856.69
  6. Step 6: Final answer
    x = 61,023.78

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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.