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Finding the Fourth Proportional to 154,096.08, 212,656.80 and 87,028.08

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Solution

The fourth proportional to 154,096.08, 212,656.80 and 87,028.08 is: 120,101.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,096.08 : 212,656.80 = 87,028.08 : x
  2. Step 2: Convert to fraction form
    154,096.08/212,656.80 = 87,028.08/x
  3. Step 3: Cross multiply
    154,096.08x = 212,656.80 × 87,028.08
  4. Step 4: Simplify right side
    154,096.08x = 18,507,113,002.94
  5. Step 5: Solve for x
    x = 18,507,113,002.94/154,096.08
  6. Step 6: Final answer
    x = 120,101.13

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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.