Home / 140,143.43-210,090.12-51,376.20

Finding the Fourth Proportional to 140,143.43, 210,090.12 and 51,376.20

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Solution

The fourth proportional to 140,143.43, 210,090.12 and 51,376.20 is: 77,018.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,143.43 : 210,090.12 = 51,376.20 : x
  2. Step 2: Convert to fraction form
    140,143.43/210,090.12 = 51,376.20/x
  3. Step 3: Cross multiply
    140,143.43x = 210,090.12 × 51,376.20
  4. Step 4: Simplify right side
    140,143.43x = 10,793,632,023.14
  5. Step 5: Solve for x
    x = 10,793,632,023.14/140,143.43
  6. Step 6: Final answer
    x = 77,018.47

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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.