Home / 103,912.74-143,399.55-56,166.07

Finding the Fourth Proportional to 103,912.74, 143,399.55 and 56,166.07

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Solution

The fourth proportional to 103,912.74, 143,399.55 and 56,166.07 is: 77,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,912.74 : 143,399.55 = 56,166.07 : x
  2. Step 2: Convert to fraction form
    103,912.74/143,399.55 = 56,166.07/x
  3. Step 3: Cross multiply
    103,912.74x = 143,399.55 × 56,166.07
  4. Step 4: Simplify right side
    103,912.74x = 8,054,189,163.27
  5. Step 5: Solve for x
    x = 8,054,189,163.27/103,912.74
  6. Step 6: Final answer
    x = 77,509.16

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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.