Home / 145,769.04-218,578.50-66,815.64

Finding the Fourth Proportional to 145,769.04, 218,578.50 and 66,815.64

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Solution

The fourth proportional to 145,769.04, 218,578.50 and 66,815.64 is: 100,189.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,769.04 : 218,578.50 = 66,815.64 : x
  2. Step 2: Convert to fraction form
    145,769.04/218,578.50 = 66,815.64/x
  3. Step 3: Cross multiply
    145,769.04x = 218,578.50 × 66,815.64
  4. Step 4: Simplify right side
    145,769.04x = 14,604,462,367.74
  5. Step 5: Solve for x
    x = 14,604,462,367.74/145,769.04
  6. Step 6: Final answer
    x = 100,189.06

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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.