Home / 145,185.12-200,336.85-84,741.90

Finding the Fourth Proportional to 145,185.12, 200,336.85 and 84,741.90

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Solution

The fourth proportional to 145,185.12, 200,336.85 and 84,741.90 is: 116,932.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,185.12 : 200,336.85 = 84,741.90 : x
  2. Step 2: Convert to fraction form
    145,185.12/200,336.85 = 84,741.90/x
  3. Step 3: Cross multiply
    145,185.12x = 200,336.85 × 84,741.90
  4. Step 4: Simplify right side
    145,185.12x = 16,976,925,309.02
  5. Step 5: Solve for x
    x = 16,976,925,309.02/145,185.12
  6. Step 6: Final answer
    x = 116,932.96

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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.