Home / 90,125.14-135,188.02-84,644.58

Finding the Fourth Proportional to 90,125.14, 135,188.02 and 84,644.58

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Solution

The fourth proportional to 90,125.14, 135,188.02 and 84,644.58 is: 126,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,125.14 : 135,188.02 = 84,644.58 : x
  2. Step 2: Convert to fraction form
    90,125.14/135,188.02 = 84,644.58/x
  3. Step 3: Cross multiply
    90,125.14x = 135,188.02 × 84,644.58
  4. Step 4: Simplify right side
    90,125.14x = 11,442,933,173.93
  5. Step 5: Solve for x
    x = 11,442,933,173.93/90,125.14
  6. Step 6: Final answer
    x = 126,967.16

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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.