Home / 103,927.45-143,418.99-56,180.38

Finding the Fourth Proportional to 103,927.45, 143,418.99 and 56,180.38

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Solution

The fourth proportional to 103,927.45, 143,418.99 and 56,180.38 is: 77,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,927.45 : 143,418.99 = 56,180.38 : x
  2. Step 2: Convert to fraction form
    103,927.45/143,418.99 = 56,180.38/x
  3. Step 3: Cross multiply
    103,927.45x = 143,418.99 × 56,180.38
  4. Step 4: Simplify right side
    103,927.45x = 8,057,333,357.42
  5. Step 5: Solve for x
    x = 8,057,333,357.42/103,927.45
  6. Step 6: Final answer
    x = 77,528.44

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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.