Home / 133,081.48-183,655.22-72,654.67

Finding the Fourth Proportional to 133,081.48, 183,655.22 and 72,654.67

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Solution

The fourth proportional to 133,081.48, 183,655.22 and 72,654.67 is: 100,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,081.48 : 183,655.22 = 72,654.67 : x
  2. Step 2: Convert to fraction form
    133,081.48/183,655.22 = 72,654.67/x
  3. Step 3: Cross multiply
    133,081.48x = 183,655.22 × 72,654.67
  4. Step 4: Simplify right side
    133,081.48x = 13,343,409,882.20
  5. Step 5: Solve for x
    x = 13,343,409,882.20/133,081.48
  6. Step 6: Final answer
    x = 100,264.96

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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.