Home / 123,848.96-170,914.92-72,865.04

Finding the Fourth Proportional to 123,848.96, 170,914.92 and 72,865.04

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Solution

The fourth proportional to 123,848.96, 170,914.92 and 72,865.04 is: 100,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,848.96 : 170,914.92 = 72,865.04 : x
  2. Step 2: Convert to fraction form
    123,848.96/170,914.92 = 72,865.04/x
  3. Step 3: Cross multiply
    123,848.96x = 170,914.92 × 72,865.04
  4. Step 4: Simplify right side
    123,848.96x = 12,453,722,482.40
  5. Step 5: Solve for x
    x = 12,453,722,482.40/123,848.96
  6. Step 6: Final answer
    x = 100,555.73

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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.