Home / 158,288.46-218,438.01-86,668.44

Finding the Fourth Proportional to 158,288.46, 218,438.01 and 86,668.44

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Solution

The fourth proportional to 158,288.46, 218,438.01 and 86,668.44 is: 119,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,288.46 : 218,438.01 = 86,668.44 : x
  2. Step 2: Convert to fraction form
    158,288.46/218,438.01 = 86,668.44/x
  3. Step 3: Cross multiply
    158,288.46x = 218,438.01 × 86,668.44
  4. Step 4: Simplify right side
    158,288.46x = 18,931,681,563.40
  5. Step 5: Solve for x
    x = 18,931,681,563.40/158,288.46
  6. Step 6: Final answer
    x = 119,602.41

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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.