Home / 134,839.80-202,316.40-72,437.40

Finding the Fourth Proportional to 134,839.80, 202,316.40 and 72,437.40

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Solution

The fourth proportional to 134,839.80, 202,316.40 and 72,437.40 is: 108,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,839.80 : 202,316.40 = 72,437.40 : x
  2. Step 2: Convert to fraction form
    134,839.80/202,316.40 = 72,437.40/x
  3. Step 3: Cross multiply
    134,839.80x = 202,316.40 × 72,437.40
  4. Step 4: Simplify right side
    134,839.80x = 14,655,273,993.36
  5. Step 5: Solve for x
    x = 14,655,273,993.36/134,839.80
  6. Step 6: Final answer
    x = 108,686.56

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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.