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Finding the Fourth Proportional to 154,630.74, 213,404.01 and 90,096.63

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Solution

The fourth proportional to 154,630.74, 213,404.01 and 90,096.63 is: 124,341.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,630.74 : 213,404.01 = 90,096.63 : x
  2. Step 2: Convert to fraction form
    154,630.74/213,404.01 = 90,096.63/x
  3. Step 3: Cross multiply
    154,630.74x = 213,404.01 × 90,096.63
  4. Step 4: Simplify right side
    154,630.74x = 19,226,982,129.49
  5. Step 5: Solve for x
    x = 19,226,982,129.49/154,630.74
  6. Step 6: Final answer
    x = 124,341.27

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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.