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Finding the Fourth Proportional to 105,033.60, 157,550.40 and 31,161.60

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Solution

The fourth proportional to 105,033.60, 157,550.40 and 31,161.60 is: 46,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,033.60 : 157,550.40 = 31,161.60 : x
  2. Step 2: Convert to fraction form
    105,033.60/157,550.40 = 31,161.60/x
  3. Step 3: Cross multiply
    105,033.60x = 157,550.40 × 31,161.60
  4. Step 4: Simplify right side
    105,033.60x = 4,909,522,544.64
  5. Step 5: Solve for x
    x = 4,909,522,544.64/105,033.60
  6. Step 6: Final answer
    x = 46,742.40

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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.