Home / 170,222.40-255,351.36-65,129.28

Finding the Fourth Proportional to 170,222.40, 255,351.36 and 65,129.28

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Solution

The fourth proportional to 170,222.40, 255,351.36 and 65,129.28 is: 97,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,222.40 : 255,351.36 = 65,129.28 : x
  2. Step 2: Convert to fraction form
    170,222.40/255,351.36 = 65,129.28/x
  3. Step 3: Cross multiply
    170,222.40x = 255,351.36 × 65,129.28
  4. Step 4: Simplify right side
    170,222.40x = 16,630,850,223.82
  5. Step 5: Solve for x
    x = 16,630,850,223.82/170,222.40
  6. Step 6: Final answer
    x = 97,700.72

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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.