Home / 99,496.64-137,315.04-74,302.40

Finding the Fourth Proportional to 99,496.64, 137,315.04 and 74,302.40

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Solution

The fourth proportional to 99,496.64, 137,315.04 and 74,302.40 is: 102,544.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,496.64 : 137,315.04 = 74,302.40 : x
  2. Step 2: Convert to fraction form
    99,496.64/137,315.04 = 74,302.40/x
  3. Step 3: Cross multiply
    99,496.64x = 137,315.04 × 74,302.40
  4. Step 4: Simplify right side
    99,496.64x = 10,202,837,028.10
  5. Step 5: Solve for x
    x = 10,202,837,028.10/99,496.64
  6. Step 6: Final answer
    x = 102,544.54

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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.