Home / 118,316.68-163,253.24-75,313.48

Finding the Fourth Proportional to 118,316.68, 163,253.24 and 75,313.48

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Solution

The fourth proportional to 118,316.68, 163,253.24 and 75,313.48 is: 103,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,316.68 : 163,253.24 = 75,313.48 : x
  2. Step 2: Convert to fraction form
    118,316.68/163,253.24 = 75,313.48/x
  3. Step 3: Cross multiply
    118,316.68x = 163,253.24 × 75,313.48
  4. Step 4: Simplify right side
    118,316.68x = 12,295,169,625.68
  5. Step 5: Solve for x
    x = 12,295,169,625.68/118,316.68
  6. Step 6: Final answer
    x = 103,917.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.