Home / 138,996.02-191,814.50-75,333.82

Finding the Fourth Proportional to 138,996.02, 191,814.50 and 75,333.82

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Solution

The fourth proportional to 138,996.02, 191,814.50 and 75,333.82 is: 103,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,996.02 : 191,814.50 = 75,333.82 : x
  2. Step 2: Convert to fraction form
    138,996.02/191,814.50 = 75,333.82/x
  3. Step 3: Cross multiply
    138,996.02x = 191,814.50 × 75,333.82
  4. Step 4: Simplify right side
    138,996.02x = 14,450,119,016.39
  5. Step 5: Solve for x
    x = 14,450,119,016.39/138,996.02
  6. Step 6: Final answer
    x = 103,960.67

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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.