Home / 154,272.26-212,892.90-87,204.26

Finding the Fourth Proportional to 154,272.26, 212,892.90 and 87,204.26

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Solution

The fourth proportional to 154,272.26, 212,892.90 and 87,204.26 is: 120,340.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,272.26 : 212,892.90 = 87,204.26 : x
  2. Step 2: Convert to fraction form
    154,272.26/212,892.90 = 87,204.26/x
  3. Step 3: Cross multiply
    154,272.26x = 212,892.90 × 87,204.26
  4. Step 4: Simplify right side
    154,272.26x = 18,565,167,803.75
  5. Step 5: Solve for x
    x = 18,565,167,803.75/154,272.26
  6. Step 6: Final answer
    x = 120,340.29

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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.