Home / 120,417.48-166,168.76-66,699.28

Finding the Fourth Proportional to 120,417.48, 166,168.76 and 66,699.28

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Solution

The fourth proportional to 120,417.48, 166,168.76 and 66,699.28 is: 92,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,417.48 : 166,168.76 = 66,699.28 : x
  2. Step 2: Convert to fraction form
    120,417.48/166,168.76 = 66,699.28/x
  3. Step 3: Cross multiply
    120,417.48x = 166,168.76 × 66,699.28
  4. Step 4: Simplify right side
    120,417.48x = 11,083,336,650.49
  5. Step 5: Solve for x
    x = 11,083,336,650.49/120,417.48
  6. Step 6: Final answer
    x = 92,040.93

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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.