Home / 170,017.20-255,040.05-51,689.57

Finding the Fourth Proportional to 170,017.20, 255,040.05 and 51,689.57

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Solution

The fourth proportional to 170,017.20, 255,040.05 and 51,689.57 is: 77,538.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,017.20 : 255,040.05 = 51,689.57 : x
  2. Step 2: Convert to fraction form
    170,017.20/255,040.05 = 51,689.57/x
  3. Step 3: Cross multiply
    170,017.20x = 255,040.05 × 51,689.57
  4. Step 4: Simplify right side
    170,017.20x = 13,182,909,242.08
  5. Step 5: Solve for x
    x = 13,182,909,242.08/170,017.20
  6. Step 6: Final answer
    x = 77,538.68

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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.