Home / 140,119.80-210,214.90-40,280.17

Finding the Fourth Proportional to 140,119.80, 210,214.90 and 40,280.17

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Solution

The fourth proportional to 140,119.80, 210,214.90 and 40,280.17 is: 60,430.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,119.80 : 210,214.90 = 40,280.17 : x
  2. Step 2: Convert to fraction form
    140,119.80/210,214.90 = 40,280.17/x
  3. Step 3: Cross multiply
    140,119.80x = 210,214.90 × 40,280.17
  4. Step 4: Simplify right side
    140,119.80x = 8,467,492,070.60
  5. Step 5: Solve for x
    x = 8,467,492,070.60/140,119.80
  6. Step 6: Final answer
    x = 60,430.38

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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.