Home / 134,610.79-185,762.49-74,181.40

Finding the Fourth Proportional to 134,610.79, 185,762.49 and 74,181.40

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Solution

The fourth proportional to 134,610.79, 185,762.49 and 74,181.40 is: 102,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,610.79 : 185,762.49 = 74,181.40 : x
  2. Step 2: Convert to fraction form
    134,610.79/185,762.49 = 74,181.40/x
  3. Step 3: Cross multiply
    134,610.79x = 185,762.49 × 74,181.40
  4. Step 4: Simplify right side
    134,610.79x = 13,780,121,575.69
  5. Step 5: Solve for x
    x = 13,780,121,575.69/134,610.79
  6. Step 6: Final answer
    x = 102,370.11

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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.