Home / 132,820.03-183,286.32-72,389.41

Finding the Fourth Proportional to 132,820.03, 183,286.32 and 72,389.41

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Solution

The fourth proportional to 132,820.03, 183,286.32 and 72,389.41 is: 99,894.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,820.03 : 183,286.32 = 72,389.41 : x
  2. Step 2: Convert to fraction form
    132,820.03/183,286.32 = 72,389.41/x
  3. Step 3: Cross multiply
    132,820.03x = 183,286.32 × 72,389.41
  4. Step 4: Simplify right side
    132,820.03x = 13,267,988,565.87
  5. Step 5: Solve for x
    x = 13,267,988,565.87/132,820.03
  6. Step 6: Final answer
    x = 99,894.49

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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.