Home / 133,981.56-201,001.50-45,231.28

Finding the Fourth Proportional to 133,981.56, 201,001.50 and 45,231.28

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Solution

The fourth proportional to 133,981.56, 201,001.50 and 45,231.28 is: 67,856.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,981.56 : 201,001.50 = 45,231.28 : x
  2. Step 2: Convert to fraction form
    133,981.56/201,001.50 = 45,231.28/x
  3. Step 3: Cross multiply
    133,981.56x = 201,001.50 × 45,231.28
  4. Step 4: Simplify right side
    133,981.56x = 9,091,554,624.42
  5. Step 5: Solve for x
    x = 9,091,554,624.42/133,981.56
  6. Step 6: Final answer
    x = 67,856.76

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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.