Home / 210,133.31-289,982.57-119,489.28

Finding the Fourth Proportional to 210,133.31, 289,982.57 and 119,489.28

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Solution

The fourth proportional to 210,133.31, 289,982.57 and 119,489.28 is: 164,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,133.31 : 289,982.57 = 119,489.28 : x
  2. Step 2: Convert to fraction form
    210,133.31/289,982.57 = 119,489.28/x
  3. Step 3: Cross multiply
    210,133.31x = 289,982.57 × 119,489.28
  4. Step 4: Simplify right side
    210,133.31x = 34,649,807,904.40
  5. Step 5: Solve for x
    x = 34,649,807,904.40/210,133.31
  6. Step 6: Final answer
    x = 164,894.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.