Home / 165,412.40-248,248.20-76,676.90

Finding the Fourth Proportional to 165,412.40, 248,248.20 and 76,676.90

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Solution

The fourth proportional to 165,412.40, 248,248.20 and 76,676.90 is: 115,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,412.40 : 248,248.20 = 76,676.90 : x
  2. Step 2: Convert to fraction form
    165,412.40/248,248.20 = 76,676.90/x
  3. Step 3: Cross multiply
    165,412.40x = 248,248.20 × 76,676.90
  4. Step 4: Simplify right side
    165,412.40x = 19,034,902,406.58
  5. Step 5: Solve for x
    x = 19,034,902,406.58/165,412.40
  6. Step 6: Final answer
    x = 115,075.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.