Home / 170,431.40-255,676.80-70,536.80

Finding the Fourth Proportional to 170,431.40, 255,676.80 and 70,536.80

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Solution

The fourth proportional to 170,431.40, 255,676.80 and 70,536.80 is: 105,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,431.40 : 255,676.80 = 70,536.80 : x
  2. Step 2: Convert to fraction form
    170,431.40/255,676.80 = 70,536.80/x
  3. Step 3: Cross multiply
    170,431.40x = 255,676.80 × 70,536.80
  4. Step 4: Simplify right side
    170,431.40x = 18,034,623,306.24
  5. Step 5: Solve for x
    x = 18,034,623,306.24/170,431.40
  6. Step 6: Final answer
    x = 105,817.49

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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.