Home / 121,663.55-166,676.27-117,115.05

Finding the Fourth Proportional to 121,663.55, 166,676.27 and 117,115.05

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Solution

The fourth proportional to 121,663.55, 166,676.27 and 117,115.05 is: 160,444.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,663.55 : 166,676.27 = 117,115.05 : x
  2. Step 2: Convert to fraction form
    121,663.55/166,676.27 = 117,115.05/x
  3. Step 3: Cross multiply
    121,663.55x = 166,676.27 × 117,115.05
  4. Step 4: Simplify right side
    121,663.55x = 19,520,299,109.29
  5. Step 5: Solve for x
    x = 19,520,299,109.29/121,663.55
  6. Step 6: Final answer
    x = 160,444.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.