Home / 134,659.36-185,830.50-74,228.70

Finding the Fourth Proportional to 134,659.36, 185,830.50 and 74,228.70

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Solution

The fourth proportional to 134,659.36, 185,830.50 and 74,228.70 is: 102,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,659.36 : 185,830.50 = 74,228.70 : x
  2. Step 2: Convert to fraction form
    134,659.36/185,830.50 = 74,228.70/x
  3. Step 3: Cross multiply
    134,659.36x = 185,830.50 × 74,228.70
  4. Step 4: Simplify right side
    134,659.36x = 13,793,957,410.57
  5. Step 5: Solve for x
    x = 13,793,957,410.57/134,659.36
  6. Step 6: Final answer
    x = 102,435.93

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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.