Home / 140,004.40-210,006.60-73,418.80

Finding the Fourth Proportional to 140,004.40, 210,006.60 and 73,418.80

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Solution

The fourth proportional to 140,004.40, 210,006.60 and 73,418.80 is: 110,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,004.40 : 210,006.60 = 73,418.80 : x
  2. Step 2: Convert to fraction form
    140,004.40/210,006.60 = 73,418.80/x
  3. Step 3: Cross multiply
    140,004.40x = 210,006.60 × 73,418.80
  4. Step 4: Simplify right side
    140,004.40x = 15,418,432,564.08
  5. Step 5: Solve for x
    x = 15,418,432,564.08/140,004.40
  6. Step 6: Final answer
    x = 110,128.20

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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.