Home / 165,421.62-248,157.04-76,684.10

Finding the Fourth Proportional to 165,421.62, 248,157.04 and 76,684.10

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Solution

The fourth proportional to 165,421.62, 248,157.04 and 76,684.10 is: 115,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,421.62 : 248,157.04 = 76,684.10 : x
  2. Step 2: Convert to fraction form
    165,421.62/248,157.04 = 76,684.10/x
  3. Step 3: Cross multiply
    165,421.62x = 248,157.04 × 76,684.10
  4. Step 4: Simplify right side
    165,421.62x = 19,029,699,271.06
  5. Step 5: Solve for x
    x = 19,029,699,271.06/165,421.62
  6. Step 6: Final answer
    x = 115,037.56

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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.