Home / 103,629.10-143,008.15-58,917.10

Finding the Fourth Proportional to 103,629.10, 143,008.15 and 58,917.10

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Solution

The fourth proportional to 103,629.10, 143,008.15 and 58,917.10 is: 81,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.10 : 143,008.15 = 58,917.10 : x
  2. Step 2: Convert to fraction form
    103,629.10/143,008.15 = 58,917.10/x
  3. Step 3: Cross multiply
    103,629.10x = 143,008.15 × 58,917.10
  4. Step 4: Simplify right side
    103,629.10x = 8,425,625,474.37
  5. Step 5: Solve for x
    x = 8,425,625,474.37/103,629.10
  6. Step 6: Final answer
    x = 81,305.59

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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.