Home / 132,821.03-183,287.70-72,390.41

Finding the Fourth Proportional to 132,821.03, 183,287.70 and 72,390.41

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Solution

The fourth proportional to 132,821.03, 183,287.70 and 72,390.41 is: 99,895.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,821.03 : 183,287.70 = 72,390.41 : x
  2. Step 2: Convert to fraction form
    132,821.03/183,287.70 = 72,390.41/x
  3. Step 3: Cross multiply
    132,821.03x = 183,287.70 × 72,390.41
  4. Step 4: Simplify right side
    132,821.03x = 13,268,271,750.96
  5. Step 5: Solve for x
    x = 13,268,271,750.96/132,821.03
  6. Step 6: Final answer
    x = 99,895.87

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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.