Home / 170,028.80-255,140.40-64,923.20

Finding the Fourth Proportional to 170,028.80, 255,140.40 and 64,923.20

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Solution

The fourth proportional to 170,028.80, 255,140.40 and 64,923.20 is: 97,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,028.80 : 255,140.40 = 64,923.20 : x
  2. Step 2: Convert to fraction form
    170,028.80/255,140.40 = 64,923.20/x
  3. Step 3: Cross multiply
    170,028.80x = 255,140.40 × 64,923.20
  4. Step 4: Simplify right side
    170,028.80x = 16,564,531,217.28
  5. Step 5: Solve for x
    x = 16,564,531,217.28/170,028.80
  6. Step 6: Final answer
    x = 97,421.91

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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.