Home / 209,515.95-288,931.00-140,760.75

Finding the Fourth Proportional to 209,515.95, 288,931.00 and 140,760.75

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Solution

The fourth proportional to 209,515.95, 288,931.00 and 140,760.75 is: 194,114.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,515.95 : 288,931.00 = 140,760.75 : x
  2. Step 2: Convert to fraction form
    209,515.95/288,931.00 = 140,760.75/x
  3. Step 3: Cross multiply
    209,515.95x = 288,931.00 × 140,760.75
  4. Step 4: Simplify right side
    209,515.95x = 40,670,143,554.45
  5. Step 5: Solve for x
    x = 40,670,143,554.45/209,515.95
  6. Step 6: Final answer
    x = 194,114.79

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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.