Home / 145,548.30-200,790.21-105,198.15

Finding the Fourth Proportional to 145,548.30, 200,790.21 and 105,198.15

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Solution

The fourth proportional to 145,548.30, 200,790.21 and 105,198.15 is: 145,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,548.30 : 200,790.21 = 105,198.15 : x
  2. Step 2: Convert to fraction form
    145,548.30/200,790.21 = 105,198.15/x
  3. Step 3: Cross multiply
    145,548.30x = 200,790.21 × 105,198.15
  4. Step 4: Simplify right side
    145,548.30x = 21,122,758,630.11
  5. Step 5: Solve for x
    x = 21,122,758,630.11/145,548.30
  6. Step 6: Final answer
    x = 145,125.42

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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.