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Finding the Fourth Proportional to 144,969.18, 200,064.21 and 90,553.57

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Solution

The fourth proportional to 144,969.18, 200,064.21 and 90,553.57 is: 124,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,969.18 : 200,064.21 = 90,553.57 : x
  2. Step 2: Convert to fraction form
    144,969.18/200,064.21 = 90,553.57/x
  3. Step 3: Cross multiply
    144,969.18x = 200,064.21 × 90,553.57
  4. Step 4: Simplify right side
    144,969.18x = 18,116,528,444.73
  5. Step 5: Solve for x
    x = 18,116,528,444.73/144,969.18
  6. Step 6: Final answer
    x = 124,968.14

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1.5x scale

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.