Home / 132,752.64-183,128.48-78,999.36

Finding the Fourth Proportional to 132,752.64, 183,128.48 and 78,999.36

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Solution

The fourth proportional to 132,752.64, 183,128.48 and 78,999.36 is: 108,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,752.64 : 183,128.48 = 78,999.36 : x
  2. Step 2: Convert to fraction form
    132,752.64/183,128.48 = 78,999.36/x
  3. Step 3: Cross multiply
    132,752.64x = 183,128.48 × 78,999.36
  4. Step 4: Simplify right side
    132,752.64x = 14,467,032,717.77
  5. Step 5: Solve for x
    x = 14,467,032,717.77/132,752.64
  6. Step 6: Final answer
    x = 108,977.36

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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.