Home / 120,384.48-166,075.46-77,956.68

Finding the Fourth Proportional to 120,384.48, 166,075.46 and 77,956.68

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Solution

The fourth proportional to 120,384.48, 166,075.46 and 77,956.68 is: 107,544.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,384.48 : 166,075.46 = 77,956.68 : x
  2. Step 2: Convert to fraction form
    120,384.48/166,075.46 = 77,956.68/x
  3. Step 3: Cross multiply
    120,384.48x = 166,075.46 × 77,956.68
  4. Step 4: Simplify right side
    120,384.48x = 12,946,691,685.96
  5. Step 5: Solve for x
    x = 12,946,691,685.96/120,384.48
  6. Step 6: Final answer
    x = 107,544.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.