Home / 103,617.99-142,998.12-61,175.61

Finding the Fourth Proportional to 103,617.99, 142,998.12 and 61,175.61

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Solution

The fourth proportional to 103,617.99, 142,998.12 and 61,175.61 is: 84,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,617.99 : 142,998.12 = 61,175.61 : x
  2. Step 2: Convert to fraction form
    103,617.99/142,998.12 = 61,175.61/x
  3. Step 3: Cross multiply
    103,617.99x = 142,998.12 × 61,175.61
  4. Step 4: Simplify right side
    103,617.99x = 8,747,997,219.85
  5. Step 5: Solve for x
    x = 8,747,997,219.85/103,617.99
  6. Step 6: Final answer
    x = 84,425.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.