Home / 121,692.76-168,051.03-115,066.15

Finding the Fourth Proportional to 121,692.76, 168,051.03 and 115,066.15

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Solution

The fourth proportional to 121,692.76, 168,051.03 and 115,066.15 is: 158,900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,692.76 : 168,051.03 = 115,066.15 : x
  2. Step 2: Convert to fraction form
    121,692.76/168,051.03 = 115,066.15/x
  3. Step 3: Cross multiply
    121,692.76x = 168,051.03 × 115,066.15
  4. Step 4: Simplify right side
    121,692.76x = 19,336,984,185.38
  5. Step 5: Solve for x
    x = 19,336,984,185.38/121,692.76
  6. Step 6: Final answer
    x = 158,900.04

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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.