Home / 120,032.40-165,256.56-98,773.68

Finding the Fourth Proportional to 120,032.40, 165,256.56 and 98,773.68

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Solution

The fourth proportional to 120,032.40, 165,256.56 and 98,773.68 is: 135,988.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,032.40 : 165,256.56 = 98,773.68 : x
  2. Step 2: Convert to fraction form
    120,032.40/165,256.56 = 98,773.68/x
  3. Step 3: Cross multiply
    120,032.40x = 165,256.56 × 98,773.68
  4. Step 4: Simplify right side
    120,032.40x = 16,322,998,575.34
  5. Step 5: Solve for x
    x = 16,322,998,575.34/120,032.40
  6. Step 6: Final answer
    x = 135,988.27

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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.