Home / 145,940.20-218,894.10-40,769.80

Finding the Fourth Proportional to 145,940.20, 218,894.10 and 40,769.80

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Solution

The fourth proportional to 145,940.20, 218,894.10 and 40,769.80 is: 61,150.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,940.20 : 218,894.10 = 40,769.80 : x
  2. Step 2: Convert to fraction form
    145,940.20/218,894.10 = 40,769.80/x
  3. Step 3: Cross multiply
    145,940.20x = 218,894.10 × 40,769.80
  4. Step 4: Simplify right side
    145,940.20x = 8,924,268,678.18
  5. Step 5: Solve for x
    x = 8,924,268,678.18/145,940.20
  6. Step 6: Final answer
    x = 61,150.17

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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.