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Finding the Fourth Proportional to 145,435.01, 218,150.88 and 56,750.81

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Solution

The fourth proportional to 145,435.01, 218,150.88 and 56,750.81 is: 85,125.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,435.01 : 218,150.88 = 56,750.81 : x
  2. Step 2: Convert to fraction form
    145,435.01/218,150.88 = 56,750.81/x
  3. Step 3: Cross multiply
    145,435.01x = 218,150.88 × 56,750.81
  4. Step 4: Simplify right side
    145,435.01x = 12,380,239,142.21
  5. Step 5: Solve for x
    x = 12,380,239,142.21/145,435.01
  6. Step 6: Final answer
    x = 85,125.58

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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.