Home / 123,918.46-170,994.62-72,928.14

Finding the Fourth Proportional to 123,918.46, 170,994.62 and 72,928.14

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Solution

The fourth proportional to 123,918.46, 170,994.62 and 72,928.14 is: 100,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,918.46 : 170,994.62 = 72,928.14 : x
  2. Step 2: Convert to fraction form
    123,918.46/170,994.62 = 72,928.14/x
  3. Step 3: Cross multiply
    123,918.46x = 170,994.62 × 72,928.14
  4. Step 4: Simplify right side
    123,918.46x = 12,470,319,586.61
  5. Step 5: Solve for x
    x = 12,470,319,586.61/123,918.46
  6. Step 6: Final answer
    x = 100,633.27

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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.