Home / 133,309.35-183,966.44-72,879.93

Finding the Fourth Proportional to 133,309.35, 183,966.44 and 72,879.93

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Solution

The fourth proportional to 133,309.35, 183,966.44 and 72,879.93 is: 100,574.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,309.35 : 183,966.44 = 72,879.93 : x
  2. Step 2: Convert to fraction form
    133,309.35/183,966.44 = 72,879.93/x
  3. Step 3: Cross multiply
    133,309.35x = 183,966.44 × 72,879.93
  4. Step 4: Simplify right side
    133,309.35x = 13,407,460,905.15
  5. Step 5: Solve for x
    x = 13,407,460,905.15/133,309.35
  6. Step 6: Final answer
    x = 100,574.05

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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.