Home / 120,345.18-166,090.77-70,044.18

Finding the Fourth Proportional to 120,345.18, 166,090.77 and 70,044.18

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Solution

The fourth proportional to 120,345.18, 166,090.77 and 70,044.18 is: 96,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,345.18 : 166,090.77 = 70,044.18 : x
  2. Step 2: Convert to fraction form
    120,345.18/166,090.77 = 70,044.18/x
  3. Step 3: Cross multiply
    120,345.18x = 166,090.77 × 70,044.18
  4. Step 4: Simplify right side
    120,345.18x = 11,633,691,790.22
  5. Step 5: Solve for x
    x = 11,633,691,790.22/120,345.18
  6. Step 6: Final answer
    x = 96,669.36

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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.