Home / 145,575.72-218,290.68-45,734.58

Finding the Fourth Proportional to 145,575.72, 218,290.68 and 45,734.58

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Solution

The fourth proportional to 145,575.72, 218,290.68 and 45,734.58 is: 68,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,575.72 : 218,290.68 = 45,734.58 : x
  2. Step 2: Convert to fraction form
    145,575.72/218,290.68 = 45,734.58/x
  3. Step 3: Cross multiply
    145,575.72x = 218,290.68 × 45,734.58
  4. Step 4: Simplify right side
    145,575.72x = 9,983,432,567.71
  5. Step 5: Solve for x
    x = 9,983,432,567.71/145,575.72
  6. Step 6: Final answer
    x = 68,578.97

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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.