Home / 112,265.89-154,923.07-66,920.49

Finding the Fourth Proportional to 112,265.89, 154,923.07 and 66,920.49

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Solution

The fourth proportional to 112,265.89, 154,923.07 and 66,920.49 is: 92,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,265.89 : 154,923.07 = 66,920.49 : x
  2. Step 2: Convert to fraction form
    112,265.89/154,923.07 = 66,920.49/x
  3. Step 3: Cross multiply
    112,265.89x = 154,923.07 × 66,920.49
  4. Step 4: Simplify right side
    112,265.89x = 10,367,527,756.70
  5. Step 5: Solve for x
    x = 10,367,527,756.70/112,265.89
  6. Step 6: Final answer
    x = 92,347.98

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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.