Home / 140,003.80-210,005.70-40,155.10

Finding the Fourth Proportional to 140,003.80, 210,005.70 and 40,155.10

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Solution

The fourth proportional to 140,003.80, 210,005.70 and 40,155.10 is: 60,232.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,003.80 : 210,005.70 = 40,155.10 : x
  2. Step 2: Convert to fraction form
    140,003.80/210,005.70 = 40,155.10/x
  3. Step 3: Cross multiply
    140,003.80x = 210,005.70 × 40,155.10
  4. Step 4: Simplify right side
    140,003.80x = 8,432,799,884.07
  5. Step 5: Solve for x
    x = 8,432,799,884.07/140,003.80
  6. Step 6: Final answer
    x = 60,232.65

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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.