Home / 106,012.12-146,235.81-66,199

Finding the Fourth Proportional to 106,012.12, 146,235.81 and 66,199

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Solution

The fourth proportional to 106,012.12, 146,235.81 and 66,199 is: 91,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,012.12 : 146,235.81 = 66,199 : x
  2. Step 2: Convert to fraction form
    106,012.12/146,235.81 = 66,199/x
  3. Step 3: Cross multiply
    106,012.12x = 146,235.81 × 66,199
  4. Step 4: Simplify right side
    106,012.12x = 9,680,664,386.19
  5. Step 5: Solve for x
    x = 9,680,664,386.19/106,012.12
  6. Step 6: Final answer
    x = 91,316.58

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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.