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Finding the Fourth Proportional to 188,736, 260,457.53 and 103,854.89

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Solution

The fourth proportional to 188,736, 260,457.53 and 103,854.89 is: 143,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,736 : 260,457.53 = 103,854.89 : x
  2. Step 2: Convert to fraction form
    188,736/260,457.53 = 103,854.89/x
  3. Step 3: Cross multiply
    188,736x = 260,457.53 × 103,854.89
  4. Step 4: Simplify right side
    188,736x = 27,049,786,306.26
  5. Step 5: Solve for x
    x = 27,049,786,306.26/188,736
  6. Step 6: Final answer
    x = 143,320.76

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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.