Home / 133,018.81-199,506.34-39,502.69

Finding the Fourth Proportional to 133,018.81, 199,506.34 and 39,502.69

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Solution

The fourth proportional to 133,018.81, 199,506.34 and 39,502.69 is: 59,247.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,018.81 : 199,506.34 = 39,502.69 : x
  2. Step 2: Convert to fraction form
    133,018.81/199,506.34 = 39,502.69/x
  3. Step 3: Cross multiply
    133,018.81x = 199,506.34 × 39,502.69
  4. Step 4: Simplify right side
    133,018.81x = 7,881,036,652.67
  5. Step 5: Solve for x
    x = 7,881,036,652.67/133,018.81
  6. Step 6: Final answer
    x = 59,247.54

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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.