Home / 145,689.24-218,562.90-45,874.56

Finding the Fourth Proportional to 145,689.24, 218,562.90 and 45,874.56

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Solution

The fourth proportional to 145,689.24, 218,562.90 and 45,874.56 is: 68,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,689.24 : 218,562.90 = 45,874.56 : x
  2. Step 2: Convert to fraction form
    145,689.24/218,562.90 = 45,874.56/x
  3. Step 3: Cross multiply
    145,689.24x = 218,562.90 × 45,874.56
  4. Step 4: Simplify right side
    145,689.24x = 10,026,476,869.82
  5. Step 5: Solve for x
    x = 10,026,476,869.82/145,689.24
  6. Step 6: Final answer
    x = 68,820.98

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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.