Home / 106,827.90-160,047.45-86,999.10

Finding the Fourth Proportional to 106,827.90, 160,047.45 and 86,999.10

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Solution

The fourth proportional to 106,827.90, 160,047.45 and 86,999.10 is: 130,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,827.90 : 160,047.45 = 86,999.10 : x
  2. Step 2: Convert to fraction form
    106,827.90/160,047.45 = 86,999.10/x
  3. Step 3: Cross multiply
    106,827.90x = 160,047.45 × 86,999.10
  4. Step 4: Simplify right side
    106,827.90x = 13,923,984,107.30
  5. Step 5: Solve for x
    x = 13,923,984,107.30/106,827.90
  6. Step 6: Final answer
    x = 130,340.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.