Home / 145,273.53-200,496.15-81,611.40

Finding the Fourth Proportional to 145,273.53, 200,496.15 and 81,611.40

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Solution

The fourth proportional to 145,273.53, 200,496.15 and 81,611.40 is: 112,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,273.53 : 200,496.15 = 81,611.40 : x
  2. Step 2: Convert to fraction form
    145,273.53/200,496.15 = 81,611.40/x
  3. Step 3: Cross multiply
    145,273.53x = 200,496.15 × 81,611.40
  4. Step 4: Simplify right side
    145,273.53x = 16,362,771,496.11
  5. Step 5: Solve for x
    x = 16,362,771,496.11/145,273.53
  6. Step 6: Final answer
    x = 112,634.23

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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.