Home / 136,935.38-189,212.27-105,376.97

Finding the Fourth Proportional to 136,935.38, 189,212.27 and 105,376.97

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Solution

The fourth proportional to 136,935.38, 189,212.27 and 105,376.97 is: 145,606.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,935.38 : 189,212.27 = 105,376.97 : x
  2. Step 2: Convert to fraction form
    136,935.38/189,212.27 = 105,376.97/x
  3. Step 3: Cross multiply
    136,935.38x = 189,212.27 × 105,376.97
  4. Step 4: Simplify right side
    136,935.38x = 19,938,614,226.48
  5. Step 5: Solve for x
    x = 19,938,614,226.48/136,935.38
  6. Step 6: Final answer
    x = 145,606.01

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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.