Home / 170,815.23-235,707.57-99,210.42

Finding the Fourth Proportional to 170,815.23, 235,707.57 and 99,210.42

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Solution

The fourth proportional to 170,815.23, 235,707.57 and 99,210.42 is: 136,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,815.23 : 235,707.57 = 99,210.42 : x
  2. Step 2: Convert to fraction form
    170,815.23/235,707.57 = 99,210.42/x
  3. Step 3: Cross multiply
    170,815.23x = 235,707.57 × 99,210.42
  4. Step 4: Simplify right side
    170,815.23x = 23,384,647,016.88
  5. Step 5: Solve for x
    x = 23,384,647,016.88/170,815.23
  6. Step 6: Final answer
    x = 136,900.25

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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.