Home / 120,682.98-166,574.79-75,333.65

Finding the Fourth Proportional to 120,682.98, 166,574.79 and 75,333.65

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Solution

The fourth proportional to 120,682.98, 166,574.79 and 75,333.65 is: 103,980.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,682.98 : 166,574.79 = 75,333.65 : x
  2. Step 2: Convert to fraction form
    120,682.98/166,574.79 = 75,333.65/x
  3. Step 3: Cross multiply
    120,682.98x = 166,574.79 × 75,333.65
  4. Step 4: Simplify right side
    120,682.98x = 12,548,686,095.81
  5. Step 5: Solve for x
    x = 12,548,686,095.81/120,682.98
  6. Step 6: Final answer
    x = 103,980.58

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1.5x scale

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.