Home / 118,125.77-163,007.39-67,131.68

Finding the Fourth Proportional to 118,125.77, 163,007.39 and 67,131.68

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Solution

The fourth proportional to 118,125.77, 163,007.39 and 67,131.68 is: 92,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,125.77 : 163,007.39 = 67,131.68 : x
  2. Step 2: Convert to fraction form
    118,125.77/163,007.39 = 67,131.68/x
  3. Step 3: Cross multiply
    118,125.77x = 163,007.39 × 67,131.68
  4. Step 4: Simplify right side
    118,125.77x = 10,942,959,607.46
  5. Step 5: Solve for x
    x = 10,942,959,607.46/118,125.77
  6. Step 6: Final answer
    x = 92,638.21

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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.