Home / 120,248.01-165,869.97-79,412.51

Finding the Fourth Proportional to 120,248.01, 165,869.97 and 79,412.51

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Solution

The fourth proportional to 120,248.01, 165,869.97 and 79,412.51 is: 109,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,248.01 : 165,869.97 = 79,412.51 : x
  2. Step 2: Convert to fraction form
    120,248.01/165,869.97 = 79,412.51/x
  3. Step 3: Cross multiply
    120,248.01x = 165,869.97 × 79,412.51
  4. Step 4: Simplify right side
    120,248.01x = 13,172,150,768.20
  5. Step 5: Solve for x
    x = 13,172,150,768.20/120,248.01
  6. Step 6: Final answer
    x = 109,541.53

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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.