Home / 120,172.04-180,365-64,058.48

Finding the Fourth Proportional to 120,172.04, 180,365 and 64,058.48

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Solution

The fourth proportional to 120,172.04, 180,365 and 64,058.48 is: 96,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,172.04 : 180,365 = 64,058.48 : x
  2. Step 2: Convert to fraction form
    120,172.04/180,365 = 64,058.48/x
  3. Step 3: Cross multiply
    120,172.04x = 180,365 × 64,058.48
  4. Step 4: Simplify right side
    120,172.04x = 11,553,907,745.20
  5. Step 5: Solve for x
    x = 11,553,907,745.20/120,172.04
  6. Step 6: Final answer
    x = 96,144.73

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1.5x scale

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.