Home / 154,595.85-213,348.41-86,613.39

Finding the Fourth Proportional to 154,595.85, 213,348.41 and 86,613.39

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Solution

The fourth proportional to 154,595.85, 213,348.41 and 86,613.39 is: 119,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,595.85 : 213,348.41 = 86,613.39 : x
  2. Step 2: Convert to fraction form
    154,595.85/213,348.41 = 86,613.39/x
  3. Step 3: Cross multiply
    154,595.85x = 213,348.41 × 86,613.39
  4. Step 4: Simplify right side
    154,595.85x = 18,478,828,608.14
  5. Step 5: Solve for x
    x = 18,478,828,608.14/154,595.85
  6. Step 6: Final answer
    x = 119,529.91

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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.