Home / 210,719.21-290,801.67-118,869.35

Finding the Fourth Proportional to 210,719.21, 290,801.67 and 118,869.35

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Solution

The fourth proportional to 210,719.21, 290,801.67 and 118,869.35 is: 164,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,719.21 : 290,801.67 = 118,869.35 : x
  2. Step 2: Convert to fraction form
    210,719.21/290,801.67 = 118,869.35/x
  3. Step 3: Cross multiply
    210,719.21x = 290,801.67 × 118,869.35
  4. Step 4: Simplify right side
    210,719.21x = 34,567,405,491.81
  5. Step 5: Solve for x
    x = 34,567,405,491.81/210,719.21
  6. Step 6: Final answer
    x = 164,044.87

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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.