Home / 120,024.80-165,680.88-107,427.68

Finding the Fourth Proportional to 120,024.80, 165,680.88 and 107,427.68

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Solution

The fourth proportional to 120,024.80, 165,680.88 and 107,427.68 is: 148,291.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,024.80 : 165,680.88 = 107,427.68 : x
  2. Step 2: Convert to fraction form
    120,024.80/165,680.88 = 107,427.68/x
  3. Step 3: Cross multiply
    120,024.80x = 165,680.88 × 107,427.68
  4. Step 4: Simplify right side
    120,024.80x = 17,798,712,558.76
  5. Step 5: Solve for x
    x = 17,798,712,558.76/120,024.80
  6. Step 6: Final answer
    x = 148,291.96

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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.