Home / 158,021.80-236,648.70-83,986.60

Finding the Fourth Proportional to 158,021.80, 236,648.70 and 83,986.60

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Solution

The fourth proportional to 158,021.80, 236,648.70 and 83,986.60 is: 125,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,021.80 : 236,648.70 = 83,986.60 : x
  2. Step 2: Convert to fraction form
    158,021.80/236,648.70 = 83,986.60/x
  3. Step 3: Cross multiply
    158,021.80x = 236,648.70 × 83,986.60
  4. Step 4: Simplify right side
    158,021.80x = 19,875,319,707.42
  5. Step 5: Solve for x
    x = 19,875,319,707.42/158,021.80
  6. Step 6: Final answer
    x = 125,775.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.