Home / 140,003.90-210,005.85-133,880.30

Finding the Fourth Proportional to 140,003.90, 210,005.85 and 133,880.30

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Solution

The fourth proportional to 140,003.90, 210,005.85 and 133,880.30 is: 200,820.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,003.90 : 210,005.85 = 133,880.30 : x
  2. Step 2: Convert to fraction form
    140,003.90/210,005.85 = 133,880.30/x
  3. Step 3: Cross multiply
    140,003.90x = 210,005.85 × 133,880.30
  4. Step 4: Simplify right side
    140,003.90x = 28,115,646,199.76
  5. Step 5: Solve for x
    x = 28,115,646,199.76/140,003.90
  6. Step 6: Final answer
    x = 200,820.45

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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.