Home / 135,946.65-187,633.23-86,856.87

Finding the Fourth Proportional to 135,946.65, 187,633.23 and 86,856.87

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Solution

The fourth proportional to 135,946.65, 187,633.23 and 86,856.87 is: 119,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,946.65 : 187,633.23 = 86,856.87 : x
  2. Step 2: Convert to fraction form
    135,946.65/187,633.23 = 86,856.87/x
  3. Step 3: Cross multiply
    135,946.65x = 187,633.23 × 86,856.87
  4. Step 4: Simplify right side
    135,946.65x = 16,297,235,065.79
  5. Step 5: Solve for x
    x = 16,297,235,065.79/135,946.65
  6. Step 6: Final answer
    x = 119,879.64

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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.