Home / 120,434.55-180,406.34-57,062.58

Finding the Fourth Proportional to 120,434.55, 180,406.34 and 57,062.58

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Solution

The fourth proportional to 120,434.55, 180,406.34 and 57,062.58 is: 85,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,434.55 : 180,406.34 = 57,062.58 : x
  2. Step 2: Convert to fraction form
    120,434.55/180,406.34 = 57,062.58/x
  3. Step 3: Cross multiply
    120,434.55x = 180,406.34 × 57,062.58
  4. Step 4: Simplify right side
    120,434.55x = 10,294,450,460.91
  5. Step 5: Solve for x
    x = 10,294,450,460.91/120,434.55
  6. Step 6: Final answer
    x = 85,477.55

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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.