Home / 205,045.20-307,337.40-105,166.80

Finding the Fourth Proportional to 205,045.20, 307,337.40 and 105,166.80

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Solution

The fourth proportional to 205,045.20, 307,337.40 and 105,166.80 is: 157,632.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,045.20 : 307,337.40 = 105,166.80 : x
  2. Step 2: Convert to fraction form
    205,045.20/307,337.40 = 105,166.80/x
  3. Step 3: Cross multiply
    205,045.20x = 307,337.40 × 105,166.80
  4. Step 4: Simplify right side
    205,045.20x = 32,321,690,878.32
  5. Step 5: Solve for x
    x = 32,321,690,878.32/205,045.20
  6. Step 6: Final answer
    x = 157,632.03

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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.