Home / 103,628.26-143,007.63-58,305.72

Finding the Fourth Proportional to 103,628.26, 143,007.63 and 58,305.72

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Solution

The fourth proportional to 103,628.26, 143,007.63 and 58,305.72 is: 80,462.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.26 : 143,007.63 = 58,305.72 : x
  2. Step 2: Convert to fraction form
    103,628.26/143,007.63 = 58,305.72/x
  3. Step 3: Cross multiply
    103,628.26x = 143,007.63 × 58,305.72
  4. Step 4: Simplify right side
    103,628.26x = 8,338,163,150.28
  5. Step 5: Solve for x
    x = 8,338,163,150.28/103,628.26
  6. Step 6: Final answer
    x = 80,462.25

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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.