Home / 114,745.20-172,031.40-48,130.80

Finding the Fourth Proportional to 114,745.20, 172,031.40 and 48,130.80

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Solution

The fourth proportional to 114,745.20, 172,031.40 and 48,130.80 is: 72,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,745.20 : 172,031.40 = 48,130.80 : x
  2. Step 2: Convert to fraction form
    114,745.20/172,031.40 = 48,130.80/x
  3. Step 3: Cross multiply
    114,745.20x = 172,031.40 × 48,130.80
  4. Step 4: Simplify right side
    114,745.20x = 8,280,008,907.12
  5. Step 5: Solve for x
    x = 8,280,008,907.12/114,745.20
  6. Step 6: Final answer
    x = 72,159.96

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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.