Home / 133,150.22-183,722.75-78,711.17

Finding the Fourth Proportional to 133,150.22, 183,722.75 and 78,711.17

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Solution

The fourth proportional to 133,150.22, 183,722.75 and 78,711.17 is: 108,606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,150.22 : 183,722.75 = 78,711.17 : x
  2. Step 2: Convert to fraction form
    133,150.22/183,722.75 = 78,711.17/x
  3. Step 3: Cross multiply
    133,150.22x = 183,722.75 × 78,711.17
  4. Step 4: Simplify right side
    133,150.22x = 14,461,031,886.28
  5. Step 5: Solve for x
    x = 14,461,031,886.28/133,150.22
  6. Step 6: Final answer
    x = 108,606.90

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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.