Home / 120,137.43-165,801.74-66,426.51

Finding the Fourth Proportional to 120,137.43, 165,801.74 and 66,426.51

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Solution

The fourth proportional to 120,137.43, 165,801.74 and 66,426.51 is: 91,675.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,137.43 : 165,801.74 = 66,426.51 : x
  2. Step 2: Convert to fraction form
    120,137.43/165,801.74 = 66,426.51/x
  3. Step 3: Cross multiply
    120,137.43x = 165,801.74 × 66,426.51
  4. Step 4: Simplify right side
    120,137.43x = 11,013,630,607.99
  5. Step 5: Solve for x
    x = 11,013,630,607.99/120,137.43
  6. Step 6: Final answer
    x = 91,675.26

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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.