Home / 131,496.10-181,455.51-74,137.47

Finding the Fourth Proportional to 131,496.10, 181,455.51 and 74,137.47

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Solution

The fourth proportional to 131,496.10, 181,455.51 and 74,137.47 is: 102,304.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,496.10 : 181,455.51 = 74,137.47 : x
  2. Step 2: Convert to fraction form
    131,496.10/181,455.51 = 74,137.47/x
  3. Step 3: Cross multiply
    131,496.10x = 181,455.51 × 74,137.47
  4. Step 4: Simplify right side
    131,496.10x = 13,452,652,428.96
  5. Step 5: Solve for x
    x = 13,452,652,428.96/131,496.10
  6. Step 6: Final answer
    x = 102,304.58

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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.