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Finding the Fourth Proportional to 144,969.87, 200,065.14 and 90,554.25

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Solution

The fourth proportional to 144,969.87, 200,065.14 and 90,554.25 is: 124,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,969.87 : 200,065.14 = 90,554.25 : x
  2. Step 2: Convert to fraction form
    144,969.87/200,065.14 = 90,554.25/x
  3. Step 3: Cross multiply
    144,969.87x = 200,065.14 × 90,554.25
  4. Step 4: Simplify right side
    144,969.87x = 18,116,748,703.85
  5. Step 5: Solve for x
    x = 18,116,748,703.85/144,969.87
  6. Step 6: Final answer
    x = 124,969.06

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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.