Home / 130,209.72-179,694.53-76,494.26

Finding the Fourth Proportional to 130,209.72, 179,694.53 and 76,494.26

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Solution

The fourth proportional to 130,209.72, 179,694.53 and 76,494.26 is: 105,565.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,209.72 : 179,694.53 = 76,494.26 : x
  2. Step 2: Convert to fraction form
    130,209.72/179,694.53 = 76,494.26/x
  3. Step 3: Cross multiply
    130,209.72x = 179,694.53 × 76,494.26
  4. Step 4: Simplify right side
    130,209.72x = 13,745,600,165.16
  5. Step 5: Solve for x
    x = 13,745,600,165.16/130,209.72
  6. Step 6: Final answer
    x = 105,565.09

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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.