Home / 121,180.13-167,241.53-70,921.25

Finding the Fourth Proportional to 121,180.13, 167,241.53 and 70,921.25

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Solution

The fourth proportional to 121,180.13, 167,241.53 and 70,921.25 is: 97,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,180.13 : 167,241.53 = 70,921.25 : x
  2. Step 2: Convert to fraction form
    121,180.13/167,241.53 = 70,921.25/x
  3. Step 3: Cross multiply
    121,180.13x = 167,241.53 × 70,921.25
  4. Step 4: Simplify right side
    121,180.13x = 11,860,977,700.61
  5. Step 5: Solve for x
    x = 11,860,977,700.61/121,180.13
  6. Step 6: Final answer
    x = 97,878.90

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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.