Home / 97,482.06-145,890.37-81,704.91

Finding the Fourth Proportional to 97,482.06, 145,890.37 and 81,704.91

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Solution

The fourth proportional to 97,482.06, 145,890.37 and 81,704.91 is: 122,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,482.06 : 145,890.37 = 81,704.91 : x
  2. Step 2: Convert to fraction form
    97,482.06/145,890.37 = 81,704.91/x
  3. Step 3: Cross multiply
    97,482.06x = 145,890.37 × 81,704.91
  4. Step 4: Simplify right side
    97,482.06x = 11,919,959,550.72
  5. Step 5: Solve for x
    x = 11,919,959,550.72/97,482.06
  6. Step 6: Final answer
    x = 122,278.49

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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.