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Finding the Fourth Proportional to 105,732.87, 145,922.81 and 67,527.51

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Solution

The fourth proportional to 105,732.87, 145,922.81 and 67,527.51 is: 93,195.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,732.87 : 145,922.81 = 67,527.51 : x
  2. Step 2: Convert to fraction form
    105,732.87/145,922.81 = 67,527.51/x
  3. Step 3: Cross multiply
    105,732.87x = 145,922.81 × 67,527.51
  4. Step 4: Simplify right side
    105,732.87x = 9,853,804,011.50
  5. Step 5: Solve for x
    x = 9,853,804,011.50/105,732.87
  6. Step 6: Final answer
    x = 93,195.28

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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.