Home / 154,607.54-213,354.68-86,627.37

Finding the Fourth Proportional to 154,607.54, 213,354.68 and 86,627.37

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Solution

The fourth proportional to 154,607.54, 213,354.68 and 86,627.37 is: 119,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,607.54 : 213,354.68 = 86,627.37 : x
  2. Step 2: Convert to fraction form
    154,607.54/213,354.68 = 86,627.37/x
  3. Step 3: Cross multiply
    154,607.54x = 213,354.68 × 86,627.37
  4. Step 4: Simplify right side
    154,607.54x = 18,482,354,372.45
  5. Step 5: Solve for x
    x = 18,482,354,372.45/154,607.54
  6. Step 6: Final answer
    x = 119,543.68

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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.