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Finding the Fourth Proportional to 144,617.51, 217,066.52 and 69,790.32

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Solution

The fourth proportional to 144,617.51, 217,066.52 and 69,790.32 is: 104,753.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,617.51 : 217,066.52 = 69,790.32 : x
  2. Step 2: Convert to fraction form
    144,617.51/217,066.52 = 69,790.32/x
  3. Step 3: Cross multiply
    144,617.51x = 217,066.52 × 69,790.32
  4. Step 4: Simplify right side
    144,617.51x = 15,149,142,066.56
  5. Step 5: Solve for x
    x = 15,149,142,066.56/144,617.51
  6. Step 6: Final answer
    x = 104,753.16

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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.