Home / 130,119.30-194,790.15-77,501.70

Finding the Fourth Proportional to 130,119.30, 194,790.15 and 77,501.70

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Solution

The fourth proportional to 130,119.30, 194,790.15 and 77,501.70 is: 116,020.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,119.30 : 194,790.15 = 77,501.70 : x
  2. Step 2: Convert to fraction form
    130,119.30/194,790.15 = 77,501.70/x
  3. Step 3: Cross multiply
    130,119.30x = 194,790.15 × 77,501.70
  4. Step 4: Simplify right side
    130,119.30x = 15,096,567,768.26
  5. Step 5: Solve for x
    x = 15,096,567,768.26/130,119.30
  6. Step 6: Final answer
    x = 116,020.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.