Home / 118,249.75-163,362.37-77,510.58

Finding the Fourth Proportional to 118,249.75, 163,362.37 and 77,510.58

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Solution

The fourth proportional to 118,249.75, 163,362.37 and 77,510.58 is: 107,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,249.75 : 163,362.37 = 77,510.58 : x
  2. Step 2: Convert to fraction form
    118,249.75/163,362.37 = 77,510.58/x
  3. Step 3: Cross multiply
    118,249.75x = 163,362.37 × 77,510.58
  4. Step 4: Simplify right side
    118,249.75x = 12,662,311,387.82
  5. Step 5: Solve for x
    x = 12,662,311,387.82/118,249.75
  6. Step 6: Final answer
    x = 107,081.09

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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.