Home / 154,186.96-212,775.24-87,117.52

Finding the Fourth Proportional to 154,186.96, 212,775.24 and 87,117.52

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Solution

The fourth proportional to 154,186.96, 212,775.24 and 87,117.52 is: 120,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,186.96 : 212,775.24 = 87,117.52 : x
  2. Step 2: Convert to fraction form
    154,186.96/212,775.24 = 87,117.52/x
  3. Step 3: Cross multiply
    154,186.96x = 212,775.24 × 87,117.52
  4. Step 4: Simplify right side
    154,186.96x = 18,536,451,226.20
  5. Step 5: Solve for x
    x = 18,536,451,226.20/154,186.96
  6. Step 6: Final answer
    x = 120,220.62

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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.