Home / 120,301.02-165,905.10-103,299.48

Finding the Fourth Proportional to 120,301.02, 165,905.10 and 103,299.48

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Solution

The fourth proportional to 120,301.02, 165,905.10 and 103,299.48 is: 142,458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,301.02 : 165,905.10 = 103,299.48 : x
  2. Step 2: Convert to fraction form
    120,301.02/165,905.10 = 103,299.48/x
  3. Step 3: Cross multiply
    120,301.02x = 165,905.10 × 103,299.48
  4. Step 4: Simplify right side
    120,301.02x = 17,137,910,559.35
  5. Step 5: Solve for x
    x = 17,137,910,559.35/120,301.02
  6. Step 6: Final answer
    x = 142,458.56

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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.