Home / 118,223.66-163,208.86-91,305.74

Finding the Fourth Proportional to 118,223.66, 163,208.86 and 91,305.74

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Solution

The fourth proportional to 118,223.66, 163,208.86 and 91,305.74 is: 126,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,223.66 : 163,208.86 = 91,305.74 : x
  2. Step 2: Convert to fraction form
    118,223.66/163,208.86 = 91,305.74/x
  3. Step 3: Cross multiply
    118,223.66x = 163,208.86 × 91,305.74
  4. Step 4: Simplify right side
    118,223.66x = 14,901,905,736.86
  5. Step 5: Solve for x
    x = 14,901,905,736.86/118,223.66
  6. Step 6: Final answer
    x = 126,048.42

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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.