Home / 121,390.21-167,533.60-69,723.50

Finding the Fourth Proportional to 121,390.21, 167,533.60 and 69,723.50

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Solution

The fourth proportional to 121,390.21, 167,533.60 and 69,723.50 is: 96,227.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,390.21 : 167,533.60 = 69,723.50 : x
  2. Step 2: Convert to fraction form
    121,390.21/167,533.60 = 69,723.50/x
  3. Step 3: Cross multiply
    121,390.21x = 167,533.60 × 69,723.50
  4. Step 4: Simplify right side
    121,390.21x = 11,681,029,020.73
  5. Step 5: Solve for x
    x = 11,681,029,020.73/121,390.21
  6. Step 6: Final answer
    x = 96,227.11

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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.