Home / 118,134.94-163,021.65-67,154.38

Finding the Fourth Proportional to 118,134.94, 163,021.65 and 67,154.38

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Solution

The fourth proportional to 118,134.94, 163,021.65 and 67,154.38 is: 92,670.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,134.94 : 163,021.65 = 67,154.38 : x
  2. Step 2: Convert to fraction form
    118,134.94/163,021.65 = 67,154.38/x
  3. Step 3: Cross multiply
    118,134.94x = 163,021.65 × 67,154.38
  4. Step 4: Simplify right side
    118,134.94x = 10,947,617,832.33
  5. Step 5: Solve for x
    x = 10,947,617,832.33/118,134.94
  6. Step 6: Final answer
    x = 92,670.45

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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.