Home / 134,651.30-185,811.57-74,209.91

Finding the Fourth Proportional to 134,651.30, 185,811.57 and 74,209.91

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Solution

The fourth proportional to 134,651.30, 185,811.57 and 74,209.91 is: 102,405.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,651.30 : 185,811.57 = 74,209.91 : x
  2. Step 2: Convert to fraction form
    134,651.30/185,811.57 = 74,209.91/x
  3. Step 3: Cross multiply
    134,651.30x = 185,811.57 × 74,209.91
  4. Step 4: Simplify right side
    134,651.30x = 13,789,058,957.60
  5. Step 5: Solve for x
    x = 13,789,058,957.60/134,651.30
  6. Step 6: Final answer
    x = 102,405.69

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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.