Home / 133,098.48-183,715.80-79,421.04

Finding the Fourth Proportional to 133,098.48, 183,715.80 and 79,421.04

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Solution

The fourth proportional to 133,098.48, 183,715.80 and 79,421.04 is: 109,624.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,098.48 : 183,715.80 = 79,421.04 : x
  2. Step 2: Convert to fraction form
    133,098.48/183,715.80 = 79,421.04/x
  3. Step 3: Cross multiply
    133,098.48x = 183,715.80 × 79,421.04
  4. Step 4: Simplify right side
    133,098.48x = 14,590,899,900.43
  5. Step 5: Solve for x
    x = 14,590,899,900.43/133,098.48
  6. Step 6: Final answer
    x = 109,624.84

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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.