Home / 118,775.12-163,912.30-67,786.84

Finding the Fourth Proportional to 118,775.12, 163,912.30 and 67,786.84

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Solution

The fourth proportional to 118,775.12, 163,912.30 and 67,786.84 is: 93,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,775.12 : 163,912.30 = 67,786.84 : x
  2. Step 2: Convert to fraction form
    118,775.12/163,912.30 = 67,786.84/x
  3. Step 3: Cross multiply
    118,775.12x = 163,912.30 × 67,786.84
  4. Step 4: Simplify right side
    118,775.12x = 11,111,096,034.57
  5. Step 5: Solve for x
    x = 11,111,096,034.57/118,775.12
  6. Step 6: Final answer
    x = 93,547.34

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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.