Home / 134,788.80-201,783.84-99,885.12

Finding the Fourth Proportional to 134,788.80, 201,783.84 and 99,885.12

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Solution

The fourth proportional to 134,788.80, 201,783.84 and 99,885.12 is: 149,531.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,788.80 : 201,783.84 = 99,885.12 : x
  2. Step 2: Convert to fraction form
    134,788.80/201,783.84 = 99,885.12/x
  3. Step 3: Cross multiply
    134,788.80x = 201,783.84 × 99,885.12
  4. Step 4: Simplify right side
    134,788.80x = 20,155,203,072.46
  5. Step 5: Solve for x
    x = 20,155,203,072.46/134,788.80
  6. Step 6: Final answer
    x = 149,531.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.