Home / 103,142.04-154,713.12-28,262.82

Finding the Fourth Proportional to 103,142.04, 154,713.12 and 28,262.82

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Solution

The fourth proportional to 103,142.04, 154,713.12 and 28,262.82 is: 42,394.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,142.04 : 154,713.12 = 28,262.82 : x
  2. Step 2: Convert to fraction form
    103,142.04/154,713.12 = 28,262.82/x
  3. Step 3: Cross multiply
    103,142.04x = 154,713.12 × 28,262.82
  4. Step 4: Simplify right side
    103,142.04x = 4,372,629,062.20
  5. Step 5: Solve for x
    x = 4,372,629,062.20/103,142.04
  6. Step 6: Final answer
    x = 42,394.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.