Home / 210,558.72-290,622.66-119,968.14

Finding the Fourth Proportional to 210,558.72, 290,622.66 and 119,968.14

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Solution

The fourth proportional to 210,558.72, 290,622.66 and 119,968.14 is: 165,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,558.72 : 290,622.66 = 119,968.14 : x
  2. Step 2: Convert to fraction form
    210,558.72/290,622.66 = 119,968.14/x
  3. Step 3: Cross multiply
    210,558.72x = 290,622.66 × 119,968.14
  4. Step 4: Simplify right side
    210,558.72x = 34,865,459,962.05
  5. Step 5: Solve for x
    x = 34,865,459,962.05/210,558.72
  6. Step 6: Final answer
    x = 165,585.45

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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.