Home / 106,271.90-146,725.80-66,045.68

Finding the Fourth Proportional to 106,271.90, 146,725.80 and 66,045.68

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Solution

The fourth proportional to 106,271.90, 146,725.80 and 66,045.68 is: 91,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,271.90 : 146,725.80 = 66,045.68 : x
  2. Step 2: Convert to fraction form
    106,271.90/146,725.80 = 66,045.68/x
  3. Step 3: Cross multiply
    106,271.90x = 146,725.80 × 66,045.68
  4. Step 4: Simplify right side
    106,271.90x = 9,690,605,234.54
  5. Step 5: Solve for x
    x = 9,690,605,234.54/106,271.90
  6. Step 6: Final answer
    x = 91,186.90

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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.