Home / 154,542.88-213,193.92-100,803.52

Finding the Fourth Proportional to 154,542.88, 213,193.92 and 100,803.52

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Solution

The fourth proportional to 154,542.88, 213,193.92 and 100,803.52 is: 139,059.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,542.88 : 213,193.92 = 100,803.52 : x
  2. Step 2: Convert to fraction form
    154,542.88/213,193.92 = 100,803.52/x
  3. Step 3: Cross multiply
    154,542.88x = 213,193.92 × 100,803.52
  4. Step 4: Simplify right side
    154,542.88x = 21,490,697,578.60
  5. Step 5: Solve for x
    x = 21,490,697,578.60/154,542.88
  6. Step 6: Final answer
    x = 139,059.77

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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.