Home / 236,783.40-355,136.72-86,986.84

Finding the Fourth Proportional to 236,783.40, 355,136.72 and 86,986.84

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Solution

The fourth proportional to 236,783.40, 355,136.72 and 86,986.84 is: 130,466.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,783.40 : 355,136.72 = 86,986.84 : x
  2. Step 2: Convert to fraction form
    236,783.40/355,136.72 = 86,986.84/x
  3. Step 3: Cross multiply
    236,783.40x = 355,136.72 × 86,986.84
  4. Step 4: Simplify right side
    236,783.40x = 30,892,221,040.76
  5. Step 5: Solve for x
    x = 30,892,221,040.76/236,783.40
  6. Step 6: Final answer
    x = 130,466.16

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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.