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Finding the Fourth Proportional to 154,076.72, 212,650.28 and 93,666.32

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Solution

The fourth proportional to 154,076.72, 212,650.28 and 93,666.32 is: 129,274.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,076.72 : 212,650.28 = 93,666.32 : x
  2. Step 2: Convert to fraction form
    154,076.72/212,650.28 = 93,666.32/x
  3. Step 3: Cross multiply
    154,076.72x = 212,650.28 × 93,666.32
  4. Step 4: Simplify right side
    154,076.72x = 19,918,169,174.57
  5. Step 5: Solve for x
    x = 19,918,169,174.57/154,076.72
  6. Step 6: Final answer
    x = 129,274.36

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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.