Home / 121,427.82-167,564.25-66,989.46

Finding the Fourth Proportional to 121,427.82, 167,564.25 and 66,989.46

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Solution

The fourth proportional to 121,427.82, 167,564.25 and 66,989.46 is: 92,442.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,427.82 : 167,564.25 = 66,989.46 : x
  2. Step 2: Convert to fraction form
    121,427.82/167,564.25 = 66,989.46/x
  3. Step 3: Cross multiply
    121,427.82x = 167,564.25 × 66,989.46
  4. Step 4: Simplify right side
    121,427.82x = 11,225,038,622.81
  5. Step 5: Solve for x
    x = 11,225,038,622.81/121,427.82
  6. Step 6: Final answer
    x = 92,442.07

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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.