Home / 134,837.80-202,313.40-72,435.40

Finding the Fourth Proportional to 134,837.80, 202,313.40 and 72,435.40

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Solution

The fourth proportional to 134,837.80, 202,313.40 and 72,435.40 is: 108,683.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,837.80 : 202,313.40 = 72,435.40 : x
  2. Step 2: Convert to fraction form
    134,837.80/202,313.40 = 72,435.40/x
  3. Step 3: Cross multiply
    134,837.80x = 202,313.40 × 72,435.40
  4. Step 4: Simplify right side
    134,837.80x = 14,654,652,054.36
  5. Step 5: Solve for x
    x = 14,654,652,054.36/134,837.80
  6. Step 6: Final answer
    x = 108,683.56

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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.