Home / 158,090.70-218,165.22-86,477.34

Finding the Fourth Proportional to 158,090.70, 218,165.22 and 86,477.34

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Solution

The fourth proportional to 158,090.70, 218,165.22 and 86,477.34 is: 119,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,090.70 : 218,165.22 = 86,477.34 : x
  2. Step 2: Convert to fraction form
    158,090.70/218,165.22 = 86,477.34/x
  3. Step 3: Cross multiply
    158,090.70x = 218,165.22 × 86,477.34
  4. Step 4: Simplify right side
    158,090.70x = 18,866,347,906.11
  5. Step 5: Solve for x
    x = 18,866,347,906.11/158,090.70
  6. Step 6: Final answer
    x = 119,338.76

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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.