Home / 189,198.16-261,111.72-141,368.46

Finding the Fourth Proportional to 189,198.16, 261,111.72 and 141,368.46

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Solution

The fourth proportional to 189,198.16, 261,111.72 and 141,368.46 is: 195,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,198.16 : 261,111.72 = 141,368.46 : x
  2. Step 2: Convert to fraction form
    189,198.16/261,111.72 = 141,368.46/x
  3. Step 3: Cross multiply
    189,198.16x = 261,111.72 × 141,368.46
  4. Step 4: Simplify right side
    189,198.16x = 36,912,961,744.35
  5. Step 5: Solve for x
    x = 36,912,961,744.35/189,198.16
  6. Step 6: Final answer
    x = 195,102.12

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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.