Home / 210,271.24-290,148.78-119,638.72

Finding the Fourth Proportional to 210,271.24, 290,148.78 and 119,638.72

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Solution

The fourth proportional to 210,271.24, 290,148.78 and 119,638.72 is: 165,086.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,271.24 : 290,148.78 = 119,638.72 : x
  2. Step 2: Convert to fraction form
    210,271.24/290,148.78 = 119,638.72/x
  3. Step 3: Cross multiply
    210,271.24x = 290,148.78 × 119,638.72
  4. Step 4: Simplify right side
    210,271.24x = 34,713,028,648.76
  5. Step 5: Solve for x
    x = 34,713,028,648.76/210,271.24
  6. Step 6: Final answer
    x = 165,086.91

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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.