Home / 153,914.04-212,410.83-85,930.92

Finding the Fourth Proportional to 153,914.04, 212,410.83 and 85,930.92

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Solution

The fourth proportional to 153,914.04, 212,410.83 and 85,930.92 is: 118,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,914.04 : 212,410.83 = 85,930.92 : x
  2. Step 2: Convert to fraction form
    153,914.04/212,410.83 = 85,930.92/x
  3. Step 3: Cross multiply
    153,914.04x = 212,410.83 × 85,930.92
  4. Step 4: Simplify right side
    153,914.04x = 18,252,658,039.86
  5. Step 5: Solve for x
    x = 18,252,658,039.86/153,914.04
  6. Step 6: Final answer
    x = 118,589.95

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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.