Home / 121,533.31-167,715.66-67,817.76

Finding the Fourth Proportional to 121,533.31, 167,715.66 and 67,817.76

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Solution

The fourth proportional to 121,533.31, 167,715.66 and 67,817.76 is: 93,588.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,533.31 : 167,715.66 = 67,817.76 : x
  2. Step 2: Convert to fraction form
    121,533.31/167,715.66 = 67,817.76/x
  3. Step 3: Cross multiply
    121,533.31x = 167,715.66 × 67,817.76
  4. Step 4: Simplify right side
    121,533.31x = 11,374,100,378.12
  5. Step 5: Solve for x
    x = 11,374,100,378.12/121,533.31
  6. Step 6: Final answer
    x = 93,588.34

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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.