Home / 132,820.50-183,292.43-72,391.20

Finding the Fourth Proportional to 132,820.50, 183,292.43 and 72,391.20

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Solution

The fourth proportional to 132,820.50, 183,292.43 and 72,391.20 is: 99,899.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,820.50 : 183,292.43 = 72,391.20 : x
  2. Step 2: Convert to fraction form
    132,820.50/183,292.43 = 72,391.20/x
  3. Step 3: Cross multiply
    132,820.50x = 183,292.43 × 72,391.20
  4. Step 4: Simplify right side
    132,820.50x = 13,268,758,958.62
  5. Step 5: Solve for x
    x = 13,268,758,958.62/132,820.50
  6. Step 6: Final answer
    x = 99,899.93

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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.