Home / 145,262.52-217,756.08-66,329.64

Finding the Fourth Proportional to 145,262.52, 217,756.08 and 66,329.64

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Solution

The fourth proportional to 145,262.52, 217,756.08 and 66,329.64 is: 99,431.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,262.52 : 217,756.08 = 66,329.64 : x
  2. Step 2: Convert to fraction form
    145,262.52/217,756.08 = 66,329.64/x
  3. Step 3: Cross multiply
    145,262.52x = 217,756.08 × 66,329.64
  4. Step 4: Simplify right side
    145,262.52x = 14,443,682,394.21
  5. Step 5: Solve for x
    x = 14,443,682,394.21/145,262.52
  6. Step 6: Final answer
    x = 99,431.58

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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.