Home / 189,105.72-260,962.30-103,065.36

Finding the Fourth Proportional to 189,105.72, 260,962.30 and 103,065.36

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Solution

The fourth proportional to 189,105.72, 260,962.30 and 103,065.36 is: 142,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,105.72 : 260,962.30 = 103,065.36 : x
  2. Step 2: Convert to fraction form
    189,105.72/260,962.30 = 103,065.36/x
  3. Step 3: Cross multiply
    189,105.72x = 260,962.30 × 103,065.36
  4. Step 4: Simplify right side
    189,105.72x = 26,896,173,395.93
  5. Step 5: Solve for x
    x = 26,896,173,395.93/189,105.72
  6. Step 6: Final answer
    x = 142,228.24

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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.