Home / 103,629.50-143,013.96-61,187.12

Finding the Fourth Proportional to 103,629.50, 143,013.96 and 61,187.12

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Solution

The fourth proportional to 103,629.50, 143,013.96 and 61,187.12 is: 84,441.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.50 : 143,013.96 = 61,187.12 : x
  2. Step 2: Convert to fraction form
    103,629.50/143,013.96 = 61,187.12/x
  3. Step 3: Cross multiply
    103,629.50x = 143,013.96 × 61,187.12
  4. Step 4: Simplify right side
    103,629.50x = 8,750,612,332.20
  5. Step 5: Solve for x
    x = 8,750,612,332.20/103,629.50
  6. Step 6: Final answer
    x = 84,441.33

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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.