Home / 123,698.13-170,703.48-67,109.50

Finding the Fourth Proportional to 123,698.13, 170,703.48 and 67,109.50

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Solution

The fourth proportional to 123,698.13, 170,703.48 and 67,109.50 is: 92,611.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,698.13 : 170,703.48 = 67,109.50 : x
  2. Step 2: Convert to fraction form
    123,698.13/170,703.48 = 67,109.50/x
  3. Step 3: Cross multiply
    123,698.13x = 170,703.48 × 67,109.50
  4. Step 4: Simplify right side
    123,698.13x = 11,455,825,191.06
  5. Step 5: Solve for x
    x = 11,455,825,191.06/123,698.13
  6. Step 6: Final answer
    x = 92,611.14

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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.