Home / 154,484.44-213,138.96-86,491.40

Finding the Fourth Proportional to 154,484.44, 213,138.96 and 86,491.40

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Solution

The fourth proportional to 154,484.44, 213,138.96 and 86,491.40 is: 119,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,484.44 : 213,138.96 = 86,491.40 : x
  2. Step 2: Convert to fraction form
    154,484.44/213,138.96 = 86,491.40/x
  3. Step 3: Cross multiply
    154,484.44x = 213,138.96 × 86,491.40
  4. Step 4: Simplify right side
    154,484.44x = 18,434,687,044.94
  5. Step 5: Solve for x
    x = 18,434,687,044.94/154,484.44
  6. Step 6: Final answer
    x = 119,330.38

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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.