Home / 97,142.68-145,733.92-40,982.80

Finding the Fourth Proportional to 97,142.68, 145,733.92 and 40,982.80

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Solution

The fourth proportional to 97,142.68, 145,733.92 and 40,982.80 is: 61,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,142.68 : 145,733.92 = 40,982.80 : x
  2. Step 2: Convert to fraction form
    97,142.68/145,733.92 = 40,982.80/x
  3. Step 3: Cross multiply
    97,142.68x = 145,733.92 × 40,982.80
  4. Step 4: Simplify right side
    97,142.68x = 5,972,584,096.58
  5. Step 5: Solve for x
    x = 5,972,584,096.58/97,142.68
  6. Step 6: Final answer
    x = 61,482.60

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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.