Home / 190,530.47-262,715.24-155,965.25

Finding the Fourth Proportional to 190,530.47, 262,715.24 and 155,965.25

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Solution

The fourth proportional to 190,530.47, 262,715.24 and 155,965.25 is: 215,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,530.47 : 262,715.24 = 155,965.25 : x
  2. Step 2: Convert to fraction form
    190,530.47/262,715.24 = 155,965.25/x
  3. Step 3: Cross multiply
    190,530.47x = 262,715.24 × 155,965.25
  4. Step 4: Simplify right side
    190,530.47x = 40,974,445,992.01
  5. Step 5: Solve for x
    x = 40,974,445,992.01/190,530.47
  6. Step 6: Final answer
    x = 215,054.56

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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.