Home / 120,666.20-166,543.59-69,687.23

Finding the Fourth Proportional to 120,666.20, 166,543.59 and 69,687.23

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Solution

The fourth proportional to 120,666.20, 166,543.59 and 69,687.23 is: 96,182.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,666.20 : 166,543.59 = 69,687.23 : x
  2. Step 2: Convert to fraction form
    120,666.20/166,543.59 = 69,687.23/x
  3. Step 3: Cross multiply
    120,666.20x = 166,543.59 × 69,687.23
  4. Step 4: Simplify right side
    120,666.20x = 11,605,961,461.36
  5. Step 5: Solve for x
    x = 11,605,961,461.36/120,666.20
  6. Step 6: Final answer
    x = 96,182.37

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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.