Home / 411,943.23-617,853.29-142,113.87

Finding the Fourth Proportional to 411,943.23, 617,853.29 and 142,113.87

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Solution

The fourth proportional to 411,943.23, 617,853.29 and 142,113.87 is: 213,149.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,943.23 : 617,853.29 = 142,113.87 : x
  2. Step 2: Convert to fraction form
    411,943.23/617,853.29 = 142,113.87/x
  3. Step 3: Cross multiply
    411,943.23x = 617,853.29 × 142,113.87
  4. Step 4: Simplify right side
    411,943.23x = 87,805,521,423.56
  5. Step 5: Solve for x
    x = 87,805,521,423.56/411,943.23
  6. Step 6: Final answer
    x = 213,149.57

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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.