Home / 123,548.20-185,408.70-53,477.80

Finding the Fourth Proportional to 123,548.20, 185,408.70 and 53,477.80

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Solution

The fourth proportional to 123,548.20, 185,408.70 and 53,477.80 is: 80,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,548.20 : 185,408.70 = 53,477.80 : x
  2. Step 2: Convert to fraction form
    123,548.20/185,408.70 = 53,477.80/x
  3. Step 3: Cross multiply
    123,548.20x = 185,408.70 × 53,477.80
  4. Step 4: Simplify right side
    123,548.20x = 9,915,249,376.86
  5. Step 5: Solve for x
    x = 9,915,249,376.86/123,548.20
  6. Step 6: Final answer
    x = 80,254.10

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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.