Home / 109,279.60-163,870.80-50,133.40

Finding the Fourth Proportional to 109,279.60, 163,870.80 and 50,133.40

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Solution

The fourth proportional to 109,279.60, 163,870.80 and 50,133.40 is: 75,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,279.60 : 163,870.80 = 50,133.40 : x
  2. Step 2: Convert to fraction form
    109,279.60/163,870.80 = 50,133.40/x
  3. Step 3: Cross multiply
    109,279.60x = 163,870.80 × 50,133.40
  4. Step 4: Simplify right side
    109,279.60x = 8,215,400,364.72
  5. Step 5: Solve for x
    x = 8,215,400,364.72/109,279.60
  6. Step 6: Final answer
    x = 75,177.80

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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.