Home / 90,069.33-135,173.25-85,444.23

Finding the Fourth Proportional to 90,069.33, 135,173.25 and 85,444.23

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Solution

The fourth proportional to 90,069.33, 135,173.25 and 85,444.23 is: 128,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,069.33 : 135,173.25 = 85,444.23 : x
  2. Step 2: Convert to fraction form
    90,069.33/135,173.25 = 85,444.23/x
  3. Step 3: Cross multiply
    90,069.33x = 135,173.25 × 85,444.23
  4. Step 4: Simplify right side
    90,069.33x = 11,549,773,835.63
  5. Step 5: Solve for x
    x = 11,549,773,835.63/90,069.33
  6. Step 6: Final answer
    x = 128,232.04

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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.