Home / 130,299.10-195,450.71-51,412.64

Finding the Fourth Proportional to 130,299.10, 195,450.71 and 51,412.64

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Solution

The fourth proportional to 130,299.10, 195,450.71 and 51,412.64 is: 77,119.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,299.10 : 195,450.71 = 51,412.64 : x
  2. Step 2: Convert to fraction form
    130,299.10/195,450.71 = 51,412.64/x
  3. Step 3: Cross multiply
    130,299.10x = 195,450.71 × 51,412.64
  4. Step 4: Simplify right side
    130,299.10x = 10,048,636,856.07
  5. Step 5: Solve for x
    x = 10,048,636,856.07/130,299.10
  6. Step 6: Final answer
    x = 77,119.77

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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.