Home / 112,078.62-154,597.68-66,722.67

Finding the Fourth Proportional to 112,078.62, 154,597.68 and 66,722.67

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Solution

The fourth proportional to 112,078.62, 154,597.68 and 66,722.67 is: 92,035.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,078.62 : 154,597.68 = 66,722.67 : x
  2. Step 2: Convert to fraction form
    112,078.62/154,597.68 = 66,722.67/x
  3. Step 3: Cross multiply
    112,078.62x = 154,597.68 × 66,722.67
  4. Step 4: Simplify right side
    112,078.62x = 10,315,169,985.41
  5. Step 5: Solve for x
    x = 10,315,169,985.41/112,078.62
  6. Step 6: Final answer
    x = 92,035.13

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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.