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Finding the Fourth Proportional to 154,367.52, 213,021.36 and 87,300.96

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Solution

The fourth proportional to 154,367.52, 213,021.36 and 87,300.96 is: 120,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,367.52 : 213,021.36 = 87,300.96 : x
  2. Step 2: Convert to fraction form
    154,367.52/213,021.36 = 87,300.96/x
  3. Step 3: Cross multiply
    154,367.52x = 213,021.36 × 87,300.96
  4. Step 4: Simplify right side
    154,367.52x = 18,596,969,228.51
  5. Step 5: Solve for x
    x = 18,596,969,228.51/154,367.52
  6. Step 6: Final answer
    x = 120,472.03

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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.