Home / 154,697.32-213,469.26-85,788.76

Finding the Fourth Proportional to 154,697.32, 213,469.26 and 85,788.76

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Solution

The fourth proportional to 154,697.32, 213,469.26 and 85,788.76 is: 118,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,697.32 : 213,469.26 = 85,788.76 : x
  2. Step 2: Convert to fraction form
    154,697.32/213,469.26 = 85,788.76/x
  3. Step 3: Cross multiply
    154,697.32x = 213,469.26 × 85,788.76
  4. Step 4: Simplify right side
    154,697.32x = 18,313,263,113.52
  5. Step 5: Solve for x
    x = 18,313,263,113.52/154,697.32
  6. Step 6: Final answer
    x = 118,381.26

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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.