Home / 117,638.93-162,355.70-69,892.47

Finding the Fourth Proportional to 117,638.93, 162,355.70 and 69,892.47

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Solution

The fourth proportional to 117,638.93, 162,355.70 and 69,892.47 is: 96,459.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,638.93 : 162,355.70 = 69,892.47 : x
  2. Step 2: Convert to fraction form
    117,638.93/162,355.70 = 69,892.47/x
  3. Step 3: Cross multiply
    117,638.93x = 162,355.70 × 69,892.47
  4. Step 4: Simplify right side
    117,638.93x = 11,347,441,066.31
  5. Step 5: Solve for x
    x = 11,347,441,066.31/117,638.93
  6. Step 6: Final answer
    x = 96,459.91

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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.