Home / 170,415.60-255,623.40-45,769.20

Finding the Fourth Proportional to 170,415.60, 255,623.40 and 45,769.20

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Solution

The fourth proportional to 170,415.60, 255,623.40 and 45,769.20 is: 68,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,415.60 : 255,623.40 = 45,769.20 : x
  2. Step 2: Convert to fraction form
    170,415.60/255,623.40 = 45,769.20/x
  3. Step 3: Cross multiply
    170,415.60x = 255,623.40 × 45,769.20
  4. Step 4: Simplify right side
    170,415.60x = 11,699,678,519.28
  5. Step 5: Solve for x
    x = 11,699,678,519.28/170,415.60
  6. Step 6: Final answer
    x = 68,653.80

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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.