Home / 210,701.44-290,795.28-120,090.40

Finding the Fourth Proportional to 210,701.44, 290,795.28 and 120,090.40

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Solution

The fourth proportional to 210,701.44, 290,795.28 and 120,090.40 is: 165,740.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,701.44 : 290,795.28 = 120,090.40 : x
  2. Step 2: Convert to fraction form
    210,701.44/290,795.28 = 120,090.40/x
  3. Step 3: Cross multiply
    210,701.44x = 290,795.28 × 120,090.40
  4. Step 4: Simplify right side
    210,701.44x = 34,921,721,493.31
  5. Step 5: Solve for x
    x = 34,921,721,493.31/210,701.44
  6. Step 6: Final answer
    x = 165,740.31

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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.