Home / 145,517.12-200,754.96-84,222.80

Finding the Fourth Proportional to 145,517.12, 200,754.96 and 84,222.80

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Solution

The fourth proportional to 145,517.12, 200,754.96 and 84,222.80 is: 116,193.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,517.12 : 200,754.96 = 84,222.80 : x
  2. Step 2: Convert to fraction form
    145,517.12/200,754.96 = 84,222.80/x
  3. Step 3: Cross multiply
    145,517.12x = 200,754.96 × 84,222.80
  4. Step 4: Simplify right side
    145,517.12x = 16,908,144,845.09
  5. Step 5: Solve for x
    x = 16,908,144,845.09/145,517.12
  6. Step 6: Final answer
    x = 116,193.51

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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.