Home / 74,575.34-111,731.79-70,135.73

Finding the Fourth Proportional to 74,575.34, 111,731.79 and 70,135.73

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Solution

The fourth proportional to 74,575.34, 111,731.79 and 70,135.73 is: 105,080.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,575.34 : 111,731.79 = 70,135.73 : x
  2. Step 2: Convert to fraction form
    74,575.34/111,731.79 = 70,135.73/x
  3. Step 3: Cross multiply
    74,575.34x = 111,731.79 × 70,135.73
  4. Step 4: Simplify right side
    74,575.34x = 7,836,390,655.86
  5. Step 5: Solve for x
    x = 7,836,390,655.86/74,575.34
  6. Step 6: Final answer
    x = 105,080.19

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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.