Home / 154,445.52-213,153.48-87,364.56

Finding the Fourth Proportional to 154,445.52, 213,153.48 and 87,364.56

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Solution

The fourth proportional to 154,445.52, 213,153.48 and 87,364.56 is: 120,573.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,445.52 : 213,153.48 = 87,364.56 : x
  2. Step 2: Convert to fraction form
    154,445.52/213,153.48 = 87,364.56/x
  3. Step 3: Cross multiply
    154,445.52x = 213,153.48 × 87,364.56
  4. Step 4: Simplify right side
    154,445.52x = 18,622,059,992.67
  5. Step 5: Solve for x
    x = 18,622,059,992.67/154,445.52
  6. Step 6: Final answer
    x = 120,573.65

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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.