Home / 118,176.94-163,144.32-91,259.02

Finding the Fourth Proportional to 118,176.94, 163,144.32 and 91,259.02

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Solution

The fourth proportional to 118,176.94, 163,144.32 and 91,259.02 is: 125,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,176.94 : 163,144.32 = 91,259.02 : x
  2. Step 2: Convert to fraction form
    118,176.94/163,144.32 = 91,259.02/x
  3. Step 3: Cross multiply
    118,176.94x = 163,144.32 × 91,259.02
  4. Step 4: Simplify right side
    118,176.94x = 14,888,390,761.77
  5. Step 5: Solve for x
    x = 14,888,390,761.77/118,176.94
  6. Step 6: Final answer
    x = 125,983.89

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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.