Home / 170,438.38-255,657.57-52,109.72

Finding the Fourth Proportional to 170,438.38, 255,657.57 and 52,109.72

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Solution

The fourth proportional to 170,438.38, 255,657.57 and 52,109.72 is: 78,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,438.38 : 255,657.57 = 52,109.72 : x
  2. Step 2: Convert to fraction form
    170,438.38/255,657.57 = 52,109.72/x
  3. Step 3: Cross multiply
    170,438.38x = 255,657.57 × 52,109.72
  4. Step 4: Simplify right side
    170,438.38x = 13,322,243,514.08
  5. Step 5: Solve for x
    x = 13,322,243,514.08/170,438.38
  6. Step 6: Final answer
    x = 78,164.58

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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.