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Finding the Fourth Proportional to 115,539.60, 173,334.60 and 65,643.60

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Solution

The fourth proportional to 115,539.60, 173,334.60 and 65,643.60 is: 98,479.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,539.60 : 173,334.60 = 65,643.60 : x
  2. Step 2: Convert to fraction form
    115,539.60/173,334.60 = 65,643.60/x
  3. Step 3: Cross multiply
    115,539.60x = 173,334.60 × 65,643.60
  4. Step 4: Simplify right side
    115,539.60x = 11,378,307,148.56
  5. Step 5: Solve for x
    x = 11,378,307,148.56/115,539.60
  6. Step 6: Final answer
    x = 98,479.72

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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.