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Finding the Fourth Proportional to 134,178.80, 201,037.80 and 70,905.20

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Solution

The fourth proportional to 134,178.80, 201,037.80 and 70,905.20 is: 106,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,178.80 : 201,037.80 = 70,905.20 : x
  2. Step 2: Convert to fraction form
    134,178.80/201,037.80 = 70,905.20/x
  3. Step 3: Cross multiply
    134,178.80x = 201,037.80 × 70,905.20
  4. Step 4: Simplify right side
    134,178.80x = 14,254,625,416.56
  5. Step 5: Solve for x
    x = 14,254,625,416.56/134,178.80
  6. Step 6: Final answer
    x = 106,236.05

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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.