Home / 145,689.11-218,548.85-55,731.65

Finding the Fourth Proportional to 145,689.11, 218,548.85 and 55,731.65

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Solution

The fourth proportional to 145,689.11, 218,548.85 and 55,731.65 is: 83,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,689.11 : 218,548.85 = 55,731.65 : x
  2. Step 2: Convert to fraction form
    145,689.11/218,548.85 = 55,731.65/x
  3. Step 3: Cross multiply
    145,689.11x = 218,548.85 × 55,731.65
  4. Step 4: Simplify right side
    145,689.11x = 12,180,086,644.70
  5. Step 5: Solve for x
    x = 12,180,086,644.70/145,689.11
  6. Step 6: Final answer
    x = 83,603.28

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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.