Home / 122,215.40-183,323.10-101,220.20

Finding the Fourth Proportional to 122,215.40, 183,323.10 and 101,220.20

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Solution

The fourth proportional to 122,215.40, 183,323.10 and 101,220.20 is: 151,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,215.40 : 183,323.10 = 101,220.20 : x
  2. Step 2: Convert to fraction form
    122,215.40/183,323.10 = 101,220.20/x
  3. Step 3: Cross multiply
    122,215.40x = 183,323.10 × 101,220.20
  4. Step 4: Simplify right side
    122,215.40x = 18,556,000,846.62
  5. Step 5: Solve for x
    x = 18,556,000,846.62/122,215.40
  6. Step 6: Final answer
    x = 151,830.30

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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.