Home / 118,406.58-163,403.43-64,694.93

Finding the Fourth Proportional to 118,406.58, 163,403.43 and 64,694.93

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Solution

The fourth proportional to 118,406.58, 163,403.43 and 64,694.93 is: 89,280.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,406.58 : 163,403.43 = 64,694.93 : x
  2. Step 2: Convert to fraction form
    118,406.58/163,403.43 = 64,694.93/x
  3. Step 3: Cross multiply
    118,406.58x = 163,403.43 × 64,694.93
  4. Step 4: Simplify right side
    118,406.58x = 10,571,372,405.99
  5. Step 5: Solve for x
    x = 10,571,372,405.99/118,406.58
  6. Step 6: Final answer
    x = 89,280.28

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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.