Home / 115,323.20-172,984.80-48,811.40

Finding the Fourth Proportional to 115,323.20, 172,984.80 and 48,811.40

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Solution

The fourth proportional to 115,323.20, 172,984.80 and 48,811.40 is: 73,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,323.20 : 172,984.80 = 48,811.40 : x
  2. Step 2: Convert to fraction form
    115,323.20/172,984.80 = 48,811.40/x
  3. Step 3: Cross multiply
    115,323.20x = 172,984.80 × 48,811.40
  4. Step 4: Simplify right side
    115,323.20x = 8,443,630,266.72
  5. Step 5: Solve for x
    x = 8,443,630,266.72/115,323.20
  6. Step 6: Final answer
    x = 73,217.10

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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.