Home / 85,699.38-118,271.97-63,141.42

Finding the Fourth Proportional to 85,699.38, 118,271.97 and 63,141.42

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Solution

The fourth proportional to 85,699.38, 118,271.97 and 63,141.42 is: 87,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699.38 : 118,271.97 = 63,141.42 : x
  2. Step 2: Convert to fraction form
    85,699.38/118,271.97 = 63,141.42/x
  3. Step 3: Cross multiply
    85,699.38x = 118,271.97 × 63,141.42
  4. Step 4: Simplify right side
    85,699.38x = 7,467,860,132.00
  5. Step 5: Solve for x
    x = 7,467,860,132.00/85,699.38
  6. Step 6: Final answer
    x = 87,140.19

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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.