Home / 120,887.37-166,814.79-69,903.40

Finding the Fourth Proportional to 120,887.37, 166,814.79 and 69,903.40

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Solution

The fourth proportional to 120,887.37, 166,814.79 and 69,903.40 is: 96,461.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,887.37 : 166,814.79 = 69,903.40 : x
  2. Step 2: Convert to fraction form
    120,887.37/166,814.79 = 69,903.40/x
  3. Step 3: Cross multiply
    120,887.37x = 166,814.79 × 69,903.40
  4. Step 4: Simplify right side
    120,887.37x = 11,660,920,991.29
  5. Step 5: Solve for x
    x = 11,660,920,991.29/120,887.37
  6. Step 6: Final answer
    x = 96,461.04

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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.