Home / 145,836.45-218,809.35-57,153.60

Finding the Fourth Proportional to 145,836.45, 218,809.35 and 57,153.60

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Solution

The fourth proportional to 145,836.45, 218,809.35 and 57,153.60 is: 85,751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,836.45 : 218,809.35 = 57,153.60 : x
  2. Step 2: Convert to fraction form
    145,836.45/218,809.35 = 57,153.60/x
  3. Step 3: Cross multiply
    145,836.45x = 218,809.35 × 57,153.60
  4. Step 4: Simplify right side
    145,836.45x = 12,505,742,066.16
  5. Step 5: Solve for x
    x = 12,505,742,066.16/145,836.45
  6. Step 6: Final answer
    x = 85,751.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.