Home / 134,365.71-185,362.68-86,634.45

Finding the Fourth Proportional to 134,365.71, 185,362.68 and 86,634.45

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Solution

The fourth proportional to 134,365.71, 185,362.68 and 86,634.45 is: 119,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,365.71 : 185,362.68 = 86,634.45 : x
  2. Step 2: Convert to fraction form
    134,365.71/185,362.68 = 86,634.45/x
  3. Step 3: Cross multiply
    134,365.71x = 185,362.68 × 86,634.45
  4. Step 4: Simplify right side
    134,365.71x = 16,058,793,832.33
  5. Step 5: Solve for x
    x = 16,058,793,832.33/134,365.71
  6. Step 6: Final answer
    x = 119,515.57

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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.