Home / 140,015.40-210,023.10-73,429.80

Finding the Fourth Proportional to 140,015.40, 210,023.10 and 73,429.80

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Solution

The fourth proportional to 140,015.40, 210,023.10 and 73,429.80 is: 110,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,015.40 : 210,023.10 = 73,429.80 : x
  2. Step 2: Convert to fraction form
    140,015.40/210,023.10 = 73,429.80/x
  3. Step 3: Cross multiply
    140,015.40x = 210,023.10 × 73,429.80
  4. Step 4: Simplify right side
    140,015.40x = 15,421,954,228.38
  5. Step 5: Solve for x
    x = 15,421,954,228.38/140,015.40
  6. Step 6: Final answer
    x = 110,144.70

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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.