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Finding the Fourth Proportional to 143,661.52, 215,515.08 and 43,798.84

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Solution

The fourth proportional to 143,661.52, 215,515.08 and 43,798.84 is: 65,705.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,661.52 : 215,515.08 = 43,798.84 : x
  2. Step 2: Convert to fraction form
    143,661.52/215,515.08 = 43,798.84/x
  3. Step 3: Cross multiply
    143,661.52x = 215,515.08 × 43,798.84
  4. Step 4: Simplify right side
    143,661.52x = 9,439,310,506.51
  5. Step 5: Solve for x
    x = 9,439,310,506.51/143,661.52
  6. Step 6: Final answer
    x = 65,705.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.