Home / 90,104.14-135,142.02-30,132.16

Finding the Fourth Proportional to 90,104.14, 135,142.02 and 30,132.16

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Solution

The fourth proportional to 90,104.14, 135,142.02 and 30,132.16 is: 45,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,104.14 : 135,142.02 = 30,132.16 : x
  2. Step 2: Convert to fraction form
    90,104.14/135,142.02 = 30,132.16/x
  3. Step 3: Cross multiply
    90,104.14x = 135,142.02 × 30,132.16
  4. Step 4: Simplify right side
    90,104.14x = 4,072,120,744.50
  5. Step 5: Solve for x
    x = 4,072,120,744.50/90,104.14
  6. Step 6: Final answer
    x = 45,193.49

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1.5x scale

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.