Home / 145,942.70-218,897.85-40,772.30

Finding the Fourth Proportional to 145,942.70, 218,897.85 and 40,772.30

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Solution

The fourth proportional to 145,942.70, 218,897.85 and 40,772.30 is: 61,153.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,942.70 : 218,897.85 = 40,772.30 : x
  2. Step 2: Convert to fraction form
    145,942.70/218,897.85 = 40,772.30/x
  3. Step 3: Cross multiply
    145,942.70x = 218,897.85 × 40,772.30
  4. Step 4: Simplify right side
    145,942.70x = 8,924,968,809.56
  5. Step 5: Solve for x
    x = 8,924,968,809.56/145,942.70
  6. Step 6: Final answer
    x = 61,153.92

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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.