Home / 145,627.18-218,469.94-45,812.50

Finding the Fourth Proportional to 145,627.18, 218,469.94 and 45,812.50

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Solution

The fourth proportional to 145,627.18, 218,469.94 and 45,812.50 is: 68,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,627.18 : 218,469.94 = 45,812.50 : x
  2. Step 2: Convert to fraction form
    145,627.18/218,469.94 = 45,812.50/x
  3. Step 3: Cross multiply
    145,627.18x = 218,469.94 × 45,812.50
  4. Step 4: Simplify right side
    145,627.18x = 10,008,654,126.25
  5. Step 5: Solve for x
    x = 10,008,654,126.25/145,627.18
  6. Step 6: Final answer
    x = 68,727.93

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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.