Home / 97,237.20-145,855.80-81,685.20

Finding the Fourth Proportional to 97,237.20, 145,855.80 and 81,685.20

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Solution

The fourth proportional to 97,237.20, 145,855.80 and 81,685.20 is: 122,527.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,237.20 : 145,855.80 = 81,685.20 : x
  2. Step 2: Convert to fraction form
    97,237.20/145,855.80 = 81,685.20/x
  3. Step 3: Cross multiply
    97,237.20x = 145,855.80 × 81,685.20
  4. Step 4: Simplify right side
    97,237.20x = 11,914,260,194.16
  5. Step 5: Solve for x
    x = 11,914,260,194.16/97,237.20
  6. Step 6: Final answer
    x = 122,527.80

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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.