Home / 136,895.27-189,100.37-103,158.77

Finding the Fourth Proportional to 136,895.27, 189,100.37 and 103,158.77

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Solution

The fourth proportional to 136,895.27, 189,100.37 and 103,158.77 is: 142,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,895.27 : 189,100.37 = 103,158.77 : x
  2. Step 2: Convert to fraction form
    136,895.27/189,100.37 = 103,158.77/x
  3. Step 3: Cross multiply
    136,895.27x = 189,100.37 × 103,158.77
  4. Step 4: Simplify right side
    136,895.27x = 19,507,360,888.14
  5. Step 5: Solve for x
    x = 19,507,360,888.14/136,895.27
  6. Step 6: Final answer
    x = 142,498.43

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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.