Home / 170,775.40-256,146.36-76,007.20

Finding the Fourth Proportional to 170,775.40, 256,146.36 and 76,007.20

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Solution

The fourth proportional to 170,775.40, 256,146.36 and 76,007.20 is: 114,003.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,775.40 : 256,146.36 = 76,007.20 : x
  2. Step 2: Convert to fraction form
    170,775.40/256,146.36 = 76,007.20/x
  3. Step 3: Cross multiply
    170,775.40x = 256,146.36 × 76,007.20
  4. Step 4: Simplify right side
    170,775.40x = 19,468,967,613.79
  5. Step 5: Solve for x
    x = 19,468,967,613.79/170,775.40
  6. Step 6: Final answer
    x = 114,003.35

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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.