Home / 154,031.54-212,855.81-111,151.76

Finding the Fourth Proportional to 154,031.54, 212,855.81 and 111,151.76

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Solution

The fourth proportional to 154,031.54, 212,855.81 and 111,151.76 is: 153,600.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,031.54 : 212,855.81 = 111,151.76 : x
  2. Step 2: Convert to fraction form
    154,031.54/212,855.81 = 111,151.76/x
  3. Step 3: Cross multiply
    154,031.54x = 212,855.81 × 111,151.76
  4. Step 4: Simplify right side
    154,031.54x = 23,659,296,287.69
  5. Step 5: Solve for x
    x = 23,659,296,287.69/154,031.54
  6. Step 6: Final answer
    x = 153,600.34

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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.