Home / 145,024.40-217,542.49-69,083.90

Finding the Fourth Proportional to 145,024.40, 217,542.49 and 69,083.90

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Solution

The fourth proportional to 145,024.40, 217,542.49 and 69,083.90 is: 103,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,024.40 : 217,542.49 = 69,083.90 : x
  2. Step 2: Convert to fraction form
    145,024.40/217,542.49 = 69,083.90/x
  3. Step 3: Cross multiply
    145,024.40x = 217,542.49 × 69,083.90
  4. Step 4: Simplify right side
    145,024.40x = 15,028,683,624.91
  5. Step 5: Solve for x
    x = 15,028,683,624.91/145,024.40
  6. Step 6: Final answer
    x = 103,628.66

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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.