Home / 103,629.08-143,005.02-58,309.58

Finding the Fourth Proportional to 103,629.08, 143,005.02 and 58,309.58

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Solution

The fourth proportional to 103,629.08, 143,005.02 and 58,309.58 is: 80,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.08 : 143,005.02 = 58,309.58 : x
  2. Step 2: Convert to fraction form
    103,629.08/143,005.02 = 58,309.58/x
  3. Step 3: Cross multiply
    103,629.08x = 143,005.02 × 58,309.58
  4. Step 4: Simplify right side
    103,629.08x = 8,338,562,654.09
  5. Step 5: Solve for x
    x = 8,338,562,654.09/103,629.08
  6. Step 6: Final answer
    x = 80,465.47

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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.