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Finding the Fourth Proportional to 146,347.76, 201,959.88 and 79,279.76

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Solution

The fourth proportional to 146,347.76, 201,959.88 and 79,279.76 is: 109,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,347.76 : 201,959.88 = 79,279.76 : x
  2. Step 2: Convert to fraction form
    146,347.76/201,959.88 = 79,279.76/x
  3. Step 3: Cross multiply
    146,347.76x = 201,959.88 × 79,279.76
  4. Step 4: Simplify right side
    146,347.76x = 16,011,330,816.03
  5. Step 5: Solve for x
    x = 16,011,330,816.03/146,347.76
  6. Step 6: Final answer
    x = 109,406.05

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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.