Home / 145,611.98-200,911.29-81,926.54

Finding the Fourth Proportional to 145,611.98, 200,911.29 and 81,926.54

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Solution

The fourth proportional to 145,611.98, 200,911.29 and 81,926.54 is: 113,039.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,611.98 : 200,911.29 = 81,926.54 : x
  2. Step 2: Convert to fraction form
    145,611.98/200,911.29 = 81,926.54/x
  3. Step 3: Cross multiply
    145,611.98x = 200,911.29 × 81,926.54
  4. Step 4: Simplify right side
    145,611.98x = 16,459,966,836.64
  5. Step 5: Solve for x
    x = 16,459,966,836.64/145,611.98
  6. Step 6: Final answer
    x = 113,039.92

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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.