Home / 145,097.58-200,254.20-81,438.86

Finding the Fourth Proportional to 145,097.58, 200,254.20 and 81,438.86

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Solution

The fourth proportional to 145,097.58, 200,254.20 and 81,438.86 is: 112,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,097.58 : 200,254.20 = 81,438.86 : x
  2. Step 2: Convert to fraction form
    145,097.58/200,254.20 = 81,438.86/x
  3. Step 3: Cross multiply
    145,097.58x = 200,254.20 × 81,438.86
  4. Step 4: Simplify right side
    145,097.58x = 16,308,473,758.21
  5. Step 5: Solve for x
    x = 16,308,473,758.21/145,097.58
  6. Step 6: Final answer
    x = 112,396.59

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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.