Home / 103,629.60-143,008.84-58,917.60

Finding the Fourth Proportional to 103,629.60, 143,008.84 and 58,917.60

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Solution

The fourth proportional to 103,629.60, 143,008.84 and 58,917.60 is: 81,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.60 : 143,008.84 = 58,917.60 : x
  2. Step 2: Convert to fraction form
    103,629.60/143,008.84 = 58,917.60/x
  3. Step 3: Cross multiply
    103,629.60x = 143,008.84 × 58,917.60
  4. Step 4: Simplify right side
    103,629.60x = 8,425,737,631.58
  5. Step 5: Solve for x
    x = 8,425,737,631.58/103,629.60
  6. Step 6: Final answer
    x = 81,306.28

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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.