Home / 120,975.75-166,946.54-67,983.75

Finding the Fourth Proportional to 120,975.75, 166,946.54 and 67,983.75

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Solution

The fourth proportional to 120,975.75, 166,946.54 and 67,983.75 is: 93,817.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,975.75 : 166,946.54 = 67,983.75 : x
  2. Step 2: Convert to fraction form
    120,975.75/166,946.54 = 67,983.75/x
  3. Step 3: Cross multiply
    120,975.75x = 166,946.54 × 67,983.75
  4. Step 4: Simplify right side
    120,975.75x = 11,349,651,498.81
  5. Step 5: Solve for x
    x = 11,349,651,498.81/120,975.75
  6. Step 6: Final answer
    x = 93,817.58

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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.