Home / 120,271.03-165,969.93-66,558.31

Finding the Fourth Proportional to 120,271.03, 165,969.93 and 66,558.31

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Solution

The fourth proportional to 120,271.03, 165,969.93 and 66,558.31 is: 91,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,271.03 : 165,969.93 = 66,558.31 : x
  2. Step 2: Convert to fraction form
    120,271.03/165,969.93 = 66,558.31/x
  3. Step 3: Cross multiply
    120,271.03x = 165,969.93 × 66,558.31
  4. Step 4: Simplify right side
    120,271.03x = 11,046,677,221.77
  5. Step 5: Solve for x
    x = 11,046,677,221.77/120,271.03
  6. Step 6: Final answer
    x = 91,848.20

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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.