Home / 130,823.72-180,192.84-100,551.14

Finding the Fourth Proportional to 130,823.72, 180,192.84 and 100,551.14

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Solution

The fourth proportional to 130,823.72, 180,192.84 and 100,551.14 is: 138,496.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,823.72 : 180,192.84 = 100,551.14 : x
  2. Step 2: Convert to fraction form
    130,823.72/180,192.84 = 100,551.14/x
  3. Step 3: Cross multiply
    130,823.72x = 180,192.84 × 100,551.14
  4. Step 4: Simplify right side
    130,823.72x = 18,118,595,481.84
  5. Step 5: Solve for x
    x = 18,118,595,481.84/130,823.72
  6. Step 6: Final answer
    x = 138,496.26

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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.