Home / 210,962.89-291,128.29-115,468.75

Finding the Fourth Proportional to 210,962.89, 291,128.29 and 115,468.75

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Solution

The fourth proportional to 210,962.89, 291,128.29 and 115,468.75 is: 159,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,962.89 : 291,128.29 = 115,468.75 : x
  2. Step 2: Convert to fraction form
    210,962.89/291,128.29 = 115,468.75/x
  3. Step 3: Cross multiply
    210,962.89x = 291,128.29 × 115,468.75
  4. Step 4: Simplify right side
    210,962.89x = 33,616,219,735.94
  5. Step 5: Solve for x
    x = 33,616,219,735.94/210,962.89
  6. Step 6: Final answer
    x = 159,346.60

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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.