Home / 104,681.12-156,962.20-71,441.46

Finding the Fourth Proportional to 104,681.12, 156,962.20 and 71,441.46

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Solution

The fourth proportional to 104,681.12, 156,962.20 and 71,441.46 is: 107,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,681.12 : 156,962.20 = 71,441.46 : x
  2. Step 2: Convert to fraction form
    104,681.12/156,962.20 = 71,441.46/x
  3. Step 3: Cross multiply
    104,681.12x = 156,962.20 × 71,441.46
  4. Step 4: Simplify right side
    104,681.12x = 11,213,608,732.81
  5. Step 5: Solve for x
    x = 11,213,608,732.81/104,681.12
  6. Step 6: Final answer
    x = 107,121.60

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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.