Home / 129,931.60-194,962.20-73,814.80

Finding the Fourth Proportional to 129,931.60, 194,962.20 and 73,814.80

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Solution

The fourth proportional to 129,931.60, 194,962.20 and 73,814.80 is: 110,759.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,931.60 : 194,962.20 = 73,814.80 : x
  2. Step 2: Convert to fraction form
    129,931.60/194,962.20 = 73,814.80/x
  3. Step 3: Cross multiply
    129,931.60x = 194,962.20 × 73,814.80
  4. Step 4: Simplify right side
    129,931.60x = 14,391,095,800.56
  5. Step 5: Solve for x
    x = 14,391,095,800.56/129,931.60
  6. Step 6: Final answer
    x = 110,759.01

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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.