Home / 118,816.80-163,967.16-71,081.38

Finding the Fourth Proportional to 118,816.80, 163,967.16 and 71,081.38

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Solution

The fourth proportional to 118,816.80, 163,967.16 and 71,081.38 is: 98,092.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,816.80 : 163,967.16 = 71,081.38 : x
  2. Step 2: Convert to fraction form
    118,816.80/163,967.16 = 71,081.38/x
  3. Step 3: Cross multiply
    118,816.80x = 163,967.16 × 71,081.38
  4. Step 4: Simplify right side
    118,816.80x = 11,655,012,007.48
  5. Step 5: Solve for x
    x = 11,655,012,007.48/118,816.80
  6. Step 6: Final answer
    x = 98,092.29

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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.