Home / 151,012.80-226,519.20-72,280.80

Finding the Fourth Proportional to 151,012.80, 226,519.20 and 72,280.80

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Solution

The fourth proportional to 151,012.80, 226,519.20 and 72,280.80 is: 108,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,012.80 : 226,519.20 = 72,280.80 : x
  2. Step 2: Convert to fraction form
    151,012.80/226,519.20 = 72,280.80/x
  3. Step 3: Cross multiply
    151,012.80x = 226,519.20 × 72,280.80
  4. Step 4: Simplify right side
    151,012.80x = 16,372,988,991.36
  5. Step 5: Solve for x
    x = 16,372,988,991.36/151,012.80
  6. Step 6: Final answer
    x = 108,421.20

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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.