Home / 178,720.05-267,671.79-85,291.41

Finding the Fourth Proportional to 178,720.05, 267,671.79 and 85,291.41

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Solution

The fourth proportional to 178,720.05, 267,671.79 and 85,291.41 is: 127,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,720.05 : 267,671.79 = 85,291.41 : x
  2. Step 2: Convert to fraction form
    178,720.05/267,671.79 = 85,291.41/x
  3. Step 3: Cross multiply
    178,720.05x = 267,671.79 × 85,291.41
  4. Step 4: Simplify right side
    178,720.05x = 22,830,104,386.32
  5. Step 5: Solve for x
    x = 22,830,104,386.32/178,720.05
  6. Step 6: Final answer
    x = 127,742.27

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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.