Home / 190,394.32-262,773.10-121,513.50

Finding the Fourth Proportional to 190,394.32, 262,773.10 and 121,513.50

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Solution

The fourth proportional to 190,394.32, 262,773.10 and 121,513.50 is: 167,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,394.32 : 262,773.10 = 121,513.50 : x
  2. Step 2: Convert to fraction form
    190,394.32/262,773.10 = 121,513.50/x
  3. Step 3: Cross multiply
    190,394.32x = 262,773.10 × 121,513.50
  4. Step 4: Simplify right side
    190,394.32x = 31,930,478,632.52
  5. Step 5: Solve for x
    x = 31,930,478,632.52/190,394.32
  6. Step 6: Final answer
    x = 167,707.10

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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.