Home / 89,899.12-134,847.60-70,193.92

Finding the Fourth Proportional to 89,899.12, 134,847.60 and 70,193.92

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Solution

The fourth proportional to 89,899.12, 134,847.60 and 70,193.92 is: 105,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,899.12 : 134,847.60 = 70,193.92 : x
  2. Step 2: Convert to fraction form
    89,899.12/134,847.60 = 70,193.92/x
  3. Step 3: Cross multiply
    89,899.12x = 134,847.60 × 70,193.92
  4. Step 4: Simplify right side
    89,899.12x = 9,465,481,646.59
  5. Step 5: Solve for x
    x = 9,465,481,646.59/89,899.12
  6. Step 6: Final answer
    x = 105,290.04

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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.