Home / 144,935.40-200,109.08-90,570.60

Finding the Fourth Proportional to 144,935.40, 200,109.08 and 90,570.60

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Solution

The fourth proportional to 144,935.40, 200,109.08 and 90,570.60 is: 125,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,935.40 : 200,109.08 = 90,570.60 : x
  2. Step 2: Convert to fraction form
    144,935.40/200,109.08 = 90,570.60/x
  3. Step 3: Cross multiply
    144,935.40x = 200,109.08 × 90,570.60
  4. Step 4: Simplify right side
    144,935.40x = 18,123,999,441.05
  5. Step 5: Solve for x
    x = 18,123,999,441.05/144,935.40
  6. Step 6: Final answer
    x = 125,048.81

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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.