Home / 145,626.18-218,468.44-45,811.50

Finding the Fourth Proportional to 145,626.18, 218,468.44 and 45,811.50

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Solution

The fourth proportional to 145,626.18, 218,468.44 and 45,811.50 is: 68,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,626.18 : 218,468.44 = 45,811.50 : x
  2. Step 2: Convert to fraction form
    145,626.18/218,468.44 = 45,811.50/x
  3. Step 3: Cross multiply
    145,626.18x = 218,468.44 × 45,811.50
  4. Step 4: Simplify right side
    145,626.18x = 10,008,366,939.06
  5. Step 5: Solve for x
    x = 10,008,366,939.06/145,626.18
  6. Step 6: Final answer
    x = 68,726.43

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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.