Home / 134,739.52-185,938-74,315.68

Finding the Fourth Proportional to 134,739.52, 185,938 and 74,315.68

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Solution

The fourth proportional to 134,739.52, 185,938 and 74,315.68 is: 102,554.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,739.52 : 185,938 = 74,315.68 : x
  2. Step 2: Convert to fraction form
    134,739.52/185,938 = 74,315.68/x
  3. Step 3: Cross multiply
    134,739.52x = 185,938 × 74,315.68
  4. Step 4: Simplify right side
    134,739.52x = 13,818,108,907.84
  5. Step 5: Solve for x
    x = 13,818,108,907.84/134,739.52
  6. Step 6: Final answer
    x = 102,554.24

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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.