Home / 190,501.68-262,891.08-105,618.72

Finding the Fourth Proportional to 190,501.68, 262,891.08 and 105,618.72

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Solution

The fourth proportional to 190,501.68, 262,891.08 and 105,618.72 is: 145,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,501.68 : 262,891.08 = 105,618.72 : x
  2. Step 2: Convert to fraction form
    190,501.68/262,891.08 = 105,618.72/x
  3. Step 3: Cross multiply
    190,501.68x = 262,891.08 × 105,618.72
  4. Step 4: Simplify right side
    190,501.68x = 27,766,219,369.02
  5. Step 5: Solve for x
    x = 27,766,219,369.02/190,501.68
  6. Step 6: Final answer
    x = 145,753.15

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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.