Home / 103,806.80-143,253.85-58,485.47

Finding the Fourth Proportional to 103,806.80, 143,253.85 and 58,485.47

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Solution

The fourth proportional to 103,806.80, 143,253.85 and 58,485.47 is: 80,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,806.80 : 143,253.85 = 58,485.47 : x
  2. Step 2: Convert to fraction form
    103,806.80/143,253.85 = 58,485.47/x
  3. Step 3: Cross multiply
    103,806.80x = 143,253.85 × 58,485.47
  4. Step 4: Simplify right side
    103,806.80x = 8,378,268,958.48
  5. Step 5: Solve for x
    x = 8,378,268,958.48/103,806.80
  6. Step 6: Final answer
    x = 80,710.22

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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.