Home / 152,871.76-229,223.44-81,877.60

Finding the Fourth Proportional to 152,871.76, 229,223.44 and 81,877.60

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Solution

The fourth proportional to 152,871.76, 229,223.44 and 81,877.60 is: 122,771.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,871.76 : 229,223.44 = 81,877.60 : x
  2. Step 2: Convert to fraction form
    152,871.76/229,223.44 = 81,877.60/x
  3. Step 3: Cross multiply
    152,871.76x = 229,223.44 × 81,877.60
  4. Step 4: Simplify right side
    152,871.76x = 18,768,265,130.94
  5. Step 5: Solve for x
    x = 18,768,265,130.94/152,871.76
  6. Step 6: Final answer
    x = 122,771.30

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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.