Home / 105,515.65-145,611.20-60,193.55

Finding the Fourth Proportional to 105,515.65, 145,611.20 and 60,193.55

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Solution

The fourth proportional to 105,515.65, 145,611.20 and 60,193.55 is: 83,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,515.65 : 145,611.20 = 60,193.55 : x
  2. Step 2: Convert to fraction form
    105,515.65/145,611.20 = 60,193.55/x
  3. Step 3: Cross multiply
    105,515.65x = 145,611.20 × 60,193.55
  4. Step 4: Simplify right side
    105,515.65x = 8,764,855,047.76
  5. Step 5: Solve for x
    x = 8,764,855,047.76/105,515.65
  6. Step 6: Final answer
    x = 83,066.87

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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.