Home / 130,828.59-180,496.22-74,207.16

Finding the Fourth Proportional to 130,828.59, 180,496.22 and 74,207.16

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Solution

The fourth proportional to 130,828.59, 180,496.22 and 74,207.16 is: 102,379.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,828.59 : 180,496.22 = 74,207.16 : x
  2. Step 2: Convert to fraction form
    130,828.59/180,496.22 = 74,207.16/x
  3. Step 3: Cross multiply
    130,828.59x = 180,496.22 × 74,207.16
  4. Step 4: Simplify right side
    130,828.59x = 13,394,111,505.90
  5. Step 5: Solve for x
    x = 13,394,111,505.90/130,828.59
  6. Step 6: Final answer
    x = 102,379.09

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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.