Home / 120,856.05-166,762.80-69,858.86

Finding the Fourth Proportional to 120,856.05, 166,762.80 and 69,858.86

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Solution

The fourth proportional to 120,856.05, 166,762.80 and 69,858.86 is: 96,394.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,856.05 : 166,762.80 = 69,858.86 : x
  2. Step 2: Convert to fraction form
    120,856.05/166,762.80 = 69,858.86/x
  3. Step 3: Cross multiply
    120,856.05x = 166,762.80 × 69,858.86
  4. Step 4: Simplify right side
    120,856.05x = 11,649,858,264.59
  5. Step 5: Solve for x
    x = 11,649,858,264.59/120,856.05
  6. Step 6: Final answer
    x = 96,394.50

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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.