Home / 158,219.31-218,334.23-86,585.49

Finding the Fourth Proportional to 158,219.31, 218,334.23 and 86,585.49

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Solution

The fourth proportional to 158,219.31, 218,334.23 and 86,585.49 is: 119,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,219.31 : 218,334.23 = 86,585.49 : x
  2. Step 2: Convert to fraction form
    158,219.31/218,334.23 = 86,585.49/x
  3. Step 3: Cross multiply
    158,219.31x = 218,334.23 × 86,585.49
  4. Step 4: Simplify right side
    158,219.31x = 18,904,576,180.09
  5. Step 5: Solve for x
    x = 18,904,576,180.09/158,219.31
  6. Step 6: Final answer
    x = 119,483.37

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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.