Home / 134,838.30-202,314.15-72,435.90

Finding the Fourth Proportional to 134,838.30, 202,314.15 and 72,435.90

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Solution

The fourth proportional to 134,838.30, 202,314.15 and 72,435.90 is: 108,684.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,838.30 : 202,314.15 = 72,435.90 : x
  2. Step 2: Convert to fraction form
    134,838.30/202,314.15 = 72,435.90/x
  3. Step 3: Cross multiply
    134,838.30x = 202,314.15 × 72,435.90
  4. Step 4: Simplify right side
    134,838.30x = 14,654,807,537.99
  5. Step 5: Solve for x
    x = 14,654,807,537.99/134,838.30
  6. Step 6: Final answer
    x = 108,684.31

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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.