Home / 112,218.80-154,796.64-71,918.24

Finding the Fourth Proportional to 112,218.80, 154,796.64 and 71,918.24

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Solution

The fourth proportional to 112,218.80, 154,796.64 and 71,918.24 is: 99,205.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.80 : 154,796.64 = 71,918.24 : x
  2. Step 2: Convert to fraction form
    112,218.80/154,796.64 = 71,918.24/x
  3. Step 3: Cross multiply
    112,218.80x = 154,796.64 × 71,918.24
  4. Step 4: Simplify right side
    112,218.80x = 11,132,701,906.71
  5. Step 5: Solve for x
    x = 11,132,701,906.71/112,218.80
  6. Step 6: Final answer
    x = 99,205.32

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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.