Home / 132,869.76-183,256.59-85,127.58

Finding the Fourth Proportional to 132,869.76, 183,256.59 and 85,127.58

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Solution

The fourth proportional to 132,869.76, 183,256.59 and 85,127.58 is: 117,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,869.76 : 183,256.59 = 85,127.58 : x
  2. Step 2: Convert to fraction form
    132,869.76/183,256.59 = 85,127.58/x
  3. Step 3: Cross multiply
    132,869.76x = 183,256.59 × 85,127.58
  4. Step 4: Simplify right side
    132,869.76x = 15,600,190,025.75
  5. Step 5: Solve for x
    x = 15,600,190,025.75/132,869.76
  6. Step 6: Final answer
    x = 117,409.64

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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.