Home / 112,220.75-154,864.58-71,934.49

Finding the Fourth Proportional to 112,220.75, 154,864.58 and 71,934.49

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Solution

The fourth proportional to 112,220.75, 154,864.58 and 71,934.49 is: 99,269.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,220.75 : 154,864.58 = 71,934.49 : x
  2. Step 2: Convert to fraction form
    112,220.75/154,864.58 = 71,934.49/x
  3. Step 3: Cross multiply
    112,220.75x = 154,864.58 × 71,934.49
  4. Step 4: Simplify right side
    112,220.75x = 11,140,104,415.27
  5. Step 5: Solve for x
    x = 11,140,104,415.27/112,220.75
  6. Step 6: Final answer
    x = 99,269.56

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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.