Home / 129,605.25-194,407.88-31,109.25

Finding the Fourth Proportional to 129,605.25, 194,407.88 and 31,109.25

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Solution

The fourth proportional to 129,605.25, 194,407.88 and 31,109.25 is: 46,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,605.25 : 194,407.88 = 31,109.25 : x
  2. Step 2: Convert to fraction form
    129,605.25/194,407.88 = 31,109.25/x
  3. Step 3: Cross multiply
    129,605.25x = 194,407.88 × 31,109.25
  4. Step 4: Simplify right side
    129,605.25x = 6,047,883,185.34
  5. Step 5: Solve for x
    x = 6,047,883,185.34/129,605.25
  6. Step 6: Final answer
    x = 46,663.88

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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.