Home / 154,590.36-213,286.27-86,598.15

Finding the Fourth Proportional to 154,590.36, 213,286.27 and 86,598.15

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Solution

The fourth proportional to 154,590.36, 213,286.27 and 86,598.15 is: 119,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,590.36 : 213,286.27 = 86,598.15 : x
  2. Step 2: Convert to fraction form
    154,590.36/213,286.27 = 86,598.15/x
  3. Step 3: Cross multiply
    154,590.36x = 213,286.27 × 86,598.15
  4. Step 4: Simplify right side
    154,590.36x = 18,470,196,402.40
  5. Step 5: Solve for x
    x = 18,470,196,402.40/154,590.36
  6. Step 6: Final answer
    x = 119,478.32

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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.