Home / 130,496.31-180,081.90-76,045.02

Finding the Fourth Proportional to 130,496.31, 180,081.90 and 76,045.02

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Solution

The fourth proportional to 130,496.31, 180,081.90 and 76,045.02 is: 104,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,496.31 : 180,081.90 = 76,045.02 : x
  2. Step 2: Convert to fraction form
    130,496.31/180,081.90 = 76,045.02/x
  3. Step 3: Cross multiply
    130,496.31x = 180,081.90 × 76,045.02
  4. Step 4: Simplify right side
    130,496.31x = 13,694,331,687.14
  5. Step 5: Solve for x
    x = 13,694,331,687.14/130,496.31
  6. Step 6: Final answer
    x = 104,940.37

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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.