Home / 116,795.44-161,130-86,241.76

Finding the Fourth Proportional to 116,795.44, 161,130 and 86,241.76

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Solution

The fourth proportional to 116,795.44, 161,130 and 86,241.76 is: 118,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,795.44 : 161,130 = 86,241.76 : x
  2. Step 2: Convert to fraction form
    116,795.44/161,130 = 86,241.76/x
  3. Step 3: Cross multiply
    116,795.44x = 161,130 × 86,241.76
  4. Step 4: Simplify right side
    116,795.44x = 13,896,134,788.80
  5. Step 5: Solve for x
    x = 13,896,134,788.80/116,795.44
  6. Step 6: Final answer
    x = 118,978.40

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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.