Home / 103,310.94-142,551.09-57,990.84

Finding the Fourth Proportional to 103,310.94, 142,551.09 and 57,990.84

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Solution

The fourth proportional to 103,310.94, 142,551.09 and 57,990.84 is: 80,017.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,310.94 : 142,551.09 = 57,990.84 : x
  2. Step 2: Convert to fraction form
    103,310.94/142,551.09 = 57,990.84/x
  3. Step 3: Cross multiply
    103,310.94x = 142,551.09 × 57,990.84
  4. Step 4: Simplify right side
    103,310.94x = 8,266,656,917.45
  5. Step 5: Solve for x
    x = 8,266,656,917.45/103,310.94
  6. Step 6: Final answer
    x = 80,017.24

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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.