Home / 103,891.06-143,369.70-56,144.38

Finding the Fourth Proportional to 103,891.06, 143,369.70 and 56,144.38

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Solution

The fourth proportional to 103,891.06, 143,369.70 and 56,144.38 is: 77,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,891.06 : 143,369.70 = 56,144.38 : x
  2. Step 2: Convert to fraction form
    103,891.06/143,369.70 = 56,144.38/x
  3. Step 3: Cross multiply
    103,891.06x = 143,369.70 × 56,144.38
  4. Step 4: Simplify right side
    103,891.06x = 8,049,402,917.29
  5. Step 5: Solve for x
    x = 8,049,402,917.29/103,891.06
  6. Step 6: Final answer
    x = 77,479.26

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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.