Home / 109,042.80-163,564.20-67,052.40

Finding the Fourth Proportional to 109,042.80, 163,564.20 and 67,052.40

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Solution

The fourth proportional to 109,042.80, 163,564.20 and 67,052.40 is: 100,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,042.80 : 163,564.20 = 67,052.40 : x
  2. Step 2: Convert to fraction form
    109,042.80/163,564.20 = 67,052.40/x
  3. Step 3: Cross multiply
    109,042.80x = 163,564.20 × 67,052.40
  4. Step 4: Simplify right side
    109,042.80x = 10,967,372,164.08
  5. Step 5: Solve for x
    x = 10,967,372,164.08/109,042.80
  6. Step 6: Final answer
    x = 100,578.60

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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.