Home / 158,342.37-218,504.28-86,708.56

Finding the Fourth Proportional to 158,342.37, 218,504.28 and 86,708.56

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Solution

The fourth proportional to 158,342.37, 218,504.28 and 86,708.56 is: 119,653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,342.37 : 218,504.28 = 86,708.56 : x
  2. Step 2: Convert to fraction form
    158,342.37/218,504.28 = 86,708.56/x
  3. Step 3: Cross multiply
    158,342.37x = 218,504.28 × 86,708.56
  4. Step 4: Simplify right side
    158,342.37x = 18,946,191,472.64
  5. Step 5: Solve for x
    x = 18,946,191,472.64/158,342.37
  6. Step 6: Final answer
    x = 119,653.33

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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.