Home / 118,427.64-177,669.18-81,005.34

Finding the Fourth Proportional to 118,427.64, 177,669.18 and 81,005.34

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Solution

The fourth proportional to 118,427.64, 177,669.18 and 81,005.34 is: 121,526.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,427.64 : 177,669.18 = 81,005.34 : x
  2. Step 2: Convert to fraction form
    118,427.64/177,669.18 = 81,005.34/x
  3. Step 3: Cross multiply
    118,427.64x = 177,669.18 × 81,005.34
  4. Step 4: Simplify right side
    118,427.64x = 14,392,152,333.42
  5. Step 5: Solve for x
    x = 14,392,152,333.42/118,427.64
  6. Step 6: Final answer
    x = 121,526.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.