Home / 120,884.37-166,810.65-69,900.40

Finding the Fourth Proportional to 120,884.37, 166,810.65 and 69,900.40

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Solution

The fourth proportional to 120,884.37, 166,810.65 and 69,900.40 is: 96,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,884.37 : 166,810.65 = 69,900.40 : x
  2. Step 2: Convert to fraction form
    120,884.37/166,810.65 = 69,900.40/x
  3. Step 3: Cross multiply
    120,884.37x = 166,810.65 × 69,900.40
  4. Step 4: Simplify right side
    120,884.37x = 11,660,131,159.26
  5. Step 5: Solve for x
    x = 11,660,131,159.26/120,884.37
  6. Step 6: Final answer
    x = 96,456.90

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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.