Home / 170,338.36-255,507.56-76,870.84

Finding the Fourth Proportional to 170,338.36, 255,507.56 and 76,870.84

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Solution

The fourth proportional to 170,338.36, 255,507.56 and 76,870.84 is: 115,306.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,338.36 : 255,507.56 = 76,870.84 : x
  2. Step 2: Convert to fraction form
    170,338.36/255,507.56 = 76,870.84/x
  3. Step 3: Cross multiply
    170,338.36x = 255,507.56 × 76,870.84
  4. Step 4: Simplify right side
    170,338.36x = 19,641,080,763.55
  5. Step 5: Solve for x
    x = 19,641,080,763.55/170,338.36
  6. Step 6: Final answer
    x = 115,306.27

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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.