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Finding the Fourth Proportional to 146,033.40, 201,526.08 and 78,965.40

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Solution

The fourth proportional to 146,033.40, 201,526.08 and 78,965.40 is: 108,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,033.40 : 201,526.08 = 78,965.40 : x
  2. Step 2: Convert to fraction form
    146,033.40/201,526.08 = 78,965.40/x
  3. Step 3: Cross multiply
    146,033.40x = 201,526.08 × 78,965.40
  4. Step 4: Simplify right side
    146,033.40x = 15,913,587,517.63
  5. Step 5: Solve for x
    x = 15,913,587,517.63/146,033.40
  6. Step 6: Final answer
    x = 108,972.25

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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.