Home / 132,828-183,302.94-72,399.30

Finding the Fourth Proportional to 132,828, 183,302.94 and 72,399.30

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Solution

The fourth proportional to 132,828, 183,302.94 and 72,399.30 is: 99,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,828 : 183,302.94 = 72,399.30 : x
  2. Step 2: Convert to fraction form
    132,828/183,302.94 = 72,399.30/x
  3. Step 3: Cross multiply
    132,828x = 183,302.94 × 72,399.30
  4. Step 4: Simplify right side
    132,828x = 13,271,004,543.94
  5. Step 5: Solve for x
    x = 13,271,004,543.94/132,828
  6. Step 6: Final answer
    x = 99,911.20

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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.