Home / 121,720.02-167,967.63-67,994.34

Finding the Fourth Proportional to 121,720.02, 167,967.63 and 67,994.34

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Solution

The fourth proportional to 121,720.02, 167,967.63 and 67,994.34 is: 93,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,720.02 : 167,967.63 = 67,994.34 : x
  2. Step 2: Convert to fraction form
    121,720.02/167,967.63 = 67,994.34/x
  3. Step 3: Cross multiply
    121,720.02x = 167,967.63 × 67,994.34
  4. Step 4: Simplify right side
    121,720.02x = 11,420,848,143.21
  5. Step 5: Solve for x
    x = 11,420,848,143.21/121,720.02
  6. Step 6: Final answer
    x = 93,828.84

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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.