Home / 140,162.49-210,282.66-80,889.93

Finding the Fourth Proportional to 140,162.49, 210,282.66 and 80,889.93

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Solution

The fourth proportional to 140,162.49, 210,282.66 and 80,889.93 is: 121,357.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,162.49 : 210,282.66 = 80,889.93 : x
  2. Step 2: Convert to fraction form
    140,162.49/210,282.66 = 80,889.93/x
  3. Step 3: Cross multiply
    140,162.49x = 210,282.66 × 80,889.93
  4. Step 4: Simplify right side
    140,162.49x = 17,009,749,647.61
  5. Step 5: Solve for x
    x = 17,009,749,647.61/140,162.49
  6. Step 6: Final answer
    x = 121,357.36

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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.