Home / 120,585.03-166,407.78-66,875.01

Finding the Fourth Proportional to 120,585.03, 166,407.78 and 66,875.01

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Solution

The fourth proportional to 120,585.03, 166,407.78 and 66,875.01 is: 92,287.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,585.03 : 166,407.78 = 66,875.01 : x
  2. Step 2: Convert to fraction form
    120,585.03/166,407.78 = 66,875.01/x
  3. Step 3: Cross multiply
    120,585.03x = 166,407.78 × 66,875.01
  4. Step 4: Simplify right side
    120,585.03x = 11,128,521,951.58
  5. Step 5: Solve for x
    x = 11,128,521,951.58/120,585.03
  6. Step 6: Final answer
    x = 92,287.76

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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.