Home / 103,707.06-143,113.38-57,766.38

Finding the Fourth Proportional to 103,707.06, 143,113.38 and 57,766.38

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Solution

The fourth proportional to 103,707.06, 143,113.38 and 57,766.38 is: 79,716.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,707.06 : 143,113.38 = 57,766.38 : x
  2. Step 2: Convert to fraction form
    103,707.06/143,113.38 = 57,766.38/x
  3. Step 3: Cross multiply
    103,707.06x = 143,113.38 × 57,766.38
  4. Step 4: Simplify right side
    103,707.06x = 8,267,141,892.16
  5. Step 5: Solve for x
    x = 8,267,141,892.16/103,707.06
  6. Step 6: Final answer
    x = 79,716.29

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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.