Home / 135,285.81-186,751.92-84,323.93

Finding the Fourth Proportional to 135,285.81, 186,751.92 and 84,323.93

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Solution

The fourth proportional to 135,285.81, 186,751.92 and 84,323.93 is: 116,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,285.81 : 186,751.92 = 84,323.93 : x
  2. Step 2: Convert to fraction form
    135,285.81/186,751.92 = 84,323.93/x
  3. Step 3: Cross multiply
    135,285.81x = 186,751.92 × 84,323.93
  4. Step 4: Simplify right side
    135,285.81x = 15,747,655,211.90
  5. Step 5: Solve for x
    x = 15,747,655,211.90/135,285.81
  6. Step 6: Final answer
    x = 116,402.86

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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.