Home / 133,171.48-183,782.10-76,582.86

Finding the Fourth Proportional to 133,171.48, 183,782.10 and 76,582.86

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Solution

The fourth proportional to 133,171.48, 183,782.10 and 76,582.86 is: 105,687.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,171.48 : 183,782.10 = 76,582.86 : x
  2. Step 2: Convert to fraction form
    133,171.48/183,782.10 = 76,582.86/x
  3. Step 3: Cross multiply
    133,171.48x = 183,782.10 × 76,582.86
  4. Step 4: Simplify right side
    133,171.48x = 14,074,558,834.81
  5. Step 5: Solve for x
    x = 14,074,558,834.81/133,171.48
  6. Step 6: Final answer
    x = 105,687.49

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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.