Home / 159,485.47-220,087.37-86,889.23

Finding the Fourth Proportional to 159,485.47, 220,087.37 and 86,889.23

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Solution

The fourth proportional to 159,485.47, 220,087.37 and 86,889.23 is: 119,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,485.47 : 220,087.37 = 86,889.23 : x
  2. Step 2: Convert to fraction form
    159,485.47/220,087.37 = 86,889.23/x
  3. Step 3: Cross multiply
    159,485.47x = 220,087.37 × 86,889.23
  4. Step 4: Simplify right side
    159,485.47x = 19,123,221,127.36
  5. Step 5: Solve for x
    x = 19,123,221,127.36/159,485.47
  6. Step 6: Final answer
    x = 119,905.73

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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.