Home / 115,509.20-173,321.40-65,627.60

Finding the Fourth Proportional to 115,509.20, 173,321.40 and 65,627.60

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Solution

The fourth proportional to 115,509.20, 173,321.40 and 65,627.60 is: 98,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,509.20 : 173,321.40 = 65,627.60 : x
  2. Step 2: Convert to fraction form
    115,509.20/173,321.40 = 65,627.60/x
  3. Step 3: Cross multiply
    115,509.20x = 173,321.40 × 65,627.60
  4. Step 4: Simplify right side
    115,509.20x = 11,374,667,510.64
  5. Step 5: Solve for x
    x = 11,374,667,510.64/115,509.20
  6. Step 6: Final answer
    x = 98,474.13

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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.