Home / 345,150.10-517,513.74-134,542

Finding the Fourth Proportional to 345,150.10, 517,513.74 and 134,542

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Solution

The fourth proportional to 345,150.10, 517,513.74 and 134,542 is: 201,730.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,150.10 : 517,513.74 = 134,542 : x
  2. Step 2: Convert to fraction form
    345,150.10/517,513.74 = 134,542/x
  3. Step 3: Cross multiply
    345,150.10x = 517,513.74 × 134,542
  4. Step 4: Simplify right side
    345,150.10x = 69,627,333,607.08
  5. Step 5: Solve for x
    x = 69,627,333,607.08/345,150.10
  6. Step 6: Final answer
    x = 201,730.59

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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.