Home / 136,430.55-188,288.01-76,011.03

Finding the Fourth Proportional to 136,430.55, 188,288.01 and 76,011.03

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Solution

The fourth proportional to 136,430.55, 188,288.01 and 76,011.03 is: 104,902.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,430.55 : 188,288.01 = 76,011.03 : x
  2. Step 2: Convert to fraction form
    136,430.55/188,288.01 = 76,011.03/x
  3. Step 3: Cross multiply
    136,430.55x = 188,288.01 × 76,011.03
  4. Step 4: Simplify right side
    136,430.55x = 14,311,965,576.75
  5. Step 5: Solve for x
    x = 14,311,965,576.75/136,430.55
  6. Step 6: Final answer
    x = 104,902.94

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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.