Home / 149,968.48-225,009.53-90,038.80

Finding the Fourth Proportional to 149,968.48, 225,009.53 and 90,038.80

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Solution

The fourth proportional to 149,968.48, 225,009.53 and 90,038.80 is: 135,092.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,968.48 : 225,009.53 = 90,038.80 : x
  2. Step 2: Convert to fraction form
    149,968.48/225,009.53 = 90,038.80/x
  3. Step 3: Cross multiply
    149,968.48x = 225,009.53 × 90,038.80
  4. Step 4: Simplify right side
    149,968.48x = 20,259,588,069.76
  5. Step 5: Solve for x
    x = 20,259,588,069.76/149,968.48
  6. Step 6: Final answer
    x = 135,092.31

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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.