Home / 140,222.48-210,222.04-80,991.12

Finding the Fourth Proportional to 140,222.48, 210,222.04 and 80,991.12

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Solution

The fourth proportional to 140,222.48, 210,222.04 and 80,991.12 is: 121,422.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,222.48 : 210,222.04 = 80,991.12 : x
  2. Step 2: Convert to fraction form
    140,222.48/210,222.04 = 80,991.12/x
  3. Step 3: Cross multiply
    140,222.48x = 210,222.04 × 80,991.12
  4. Step 4: Simplify right side
    140,222.48x = 17,026,118,468.28
  5. Step 5: Solve for x
    x = 17,026,118,468.28/140,222.48
  6. Step 6: Final answer
    x = 121,422.17

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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.