Home / 121,157.14-167,212.53-69,494.40

Finding the Fourth Proportional to 121,157.14, 167,212.53 and 69,494.40

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Solution

The fourth proportional to 121,157.14, 167,212.53 and 69,494.40 is: 95,911.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,157.14 : 167,212.53 = 69,494.40 : x
  2. Step 2: Convert to fraction form
    121,157.14/167,212.53 = 69,494.40/x
  3. Step 3: Cross multiply
    121,157.14x = 167,212.53 × 69,494.40
  4. Step 4: Simplify right side
    121,157.14x = 11,620,333,261.30
  5. Step 5: Solve for x
    x = 11,620,333,261.30/121,157.14
  6. Step 6: Final answer
    x = 95,911.25

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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.