Home / 120,506.94-166,280.04-75,177.72

Finding the Fourth Proportional to 120,506.94, 166,280.04 and 75,177.72

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Solution

The fourth proportional to 120,506.94, 166,280.04 and 75,177.72 is: 103,733.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,506.94 : 166,280.04 = 75,177.72 : x
  2. Step 2: Convert to fraction form
    120,506.94/166,280.04 = 75,177.72/x
  3. Step 3: Cross multiply
    120,506.94x = 166,280.04 × 75,177.72
  4. Step 4: Simplify right side
    120,506.94x = 12,500,554,288.71
  5. Step 5: Solve for x
    x = 12,500,554,288.71/120,506.94
  6. Step 6: Final answer
    x = 103,733.07

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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.