Home / 145,012.20-218,036.70-122,202.60

Finding the Fourth Proportional to 145,012.20, 218,036.70 and 122,202.60

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Solution

The fourth proportional to 145,012.20, 218,036.70 and 122,202.60 is: 183,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,012.20 : 218,036.70 = 122,202.60 : x
  2. Step 2: Convert to fraction form
    145,012.20/218,036.70 = 122,202.60/x
  3. Step 3: Cross multiply
    145,012.20x = 218,036.70 × 122,202.60
  4. Step 4: Simplify right side
    145,012.20x = 26,644,651,635.42
  5. Step 5: Solve for x
    x = 26,644,651,635.42/145,012.20
  6. Step 6: Final answer
    x = 183,740.76

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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.