Home / 134,815.80-202,266.90-90,492.60

Finding the Fourth Proportional to 134,815.80, 202,266.90 and 90,492.60

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Solution

The fourth proportional to 134,815.80, 202,266.90 and 90,492.60 is: 135,767.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,815.80 : 202,266.90 = 90,492.60 : x
  2. Step 2: Convert to fraction form
    134,815.80/202,266.90 = 90,492.60/x
  3. Step 3: Cross multiply
    134,815.80x = 202,266.90 × 90,492.60
  4. Step 4: Simplify right side
    134,815.80x = 18,303,657,674.94
  5. Step 5: Solve for x
    x = 18,303,657,674.94/134,815.80
  6. Step 6: Final answer
    x = 135,767.90

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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.