Home / 154,519.47-213,218.84-90,002.84

Finding the Fourth Proportional to 154,519.47, 213,218.84 and 90,002.84

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Solution

The fourth proportional to 154,519.47, 213,218.84 and 90,002.84 is: 124,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,519.47 : 213,218.84 = 90,002.84 : x
  2. Step 2: Convert to fraction form
    154,519.47/213,218.84 = 90,002.84/x
  3. Step 3: Cross multiply
    154,519.47x = 213,218.84 × 90,002.84
  4. Step 4: Simplify right side
    154,519.47x = 19,190,300,300.42
  5. Step 5: Solve for x
    x = 19,190,300,300.42/154,519.47
  6. Step 6: Final answer
    x = 124,193.41

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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.