Home / 185,329.62-255,752.64-100,445.67

Finding the Fourth Proportional to 185,329.62, 255,752.64 and 100,445.67

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Solution

The fourth proportional to 185,329.62, 255,752.64 and 100,445.67 is: 138,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,329.62 : 255,752.64 = 100,445.67 : x
  2. Step 2: Convert to fraction form
    185,329.62/255,752.64 = 100,445.67/x
  3. Step 3: Cross multiply
    185,329.62x = 255,752.64 × 100,445.67
  4. Step 4: Simplify right side
    185,329.62x = 25,689,245,279.07
  5. Step 5: Solve for x
    x = 25,689,245,279.07/185,329.62
  6. Step 6: Final answer
    x = 138,613.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.