Home / 145,669.49-218,503.01-40,488.15

Finding the Fourth Proportional to 145,669.49, 218,503.01 and 40,488.15

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Solution

The fourth proportional to 145,669.49, 218,503.01 and 40,488.15 is: 60,731.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,669.49 : 218,503.01 = 40,488.15 : x
  2. Step 2: Convert to fraction form
    145,669.49/218,503.01 = 40,488.15/x
  3. Step 3: Cross multiply
    145,669.49x = 218,503.01 × 40,488.15
  4. Step 4: Simplify right side
    145,669.49x = 8,846,782,644.33
  5. Step 5: Solve for x
    x = 8,846,782,644.33/145,669.49
  6. Step 6: Final answer
    x = 60,731.89

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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.