Home / 210,722.10-316,083.15-122,203.28

Finding the Fourth Proportional to 210,722.10, 316,083.15 and 122,203.28

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Solution

The fourth proportional to 210,722.10, 316,083.15 and 122,203.28 is: 183,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,722.10 : 316,083.15 = 122,203.28 : x
  2. Step 2: Convert to fraction form
    210,722.10/316,083.15 = 122,203.28/x
  3. Step 3: Cross multiply
    210,722.10x = 316,083.15 × 122,203.28
  4. Step 4: Simplify right side
    210,722.10x = 38,626,396,102.32
  5. Step 5: Solve for x
    x = 38,626,396,102.32/210,722.10
  6. Step 6: Final answer
    x = 183,304.91

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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.