Home / 125,271.96-172,882.37-74,314.86

Finding the Fourth Proportional to 125,271.96, 172,882.37 and 74,314.86

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Solution

The fourth proportional to 125,271.96, 172,882.37 and 74,314.86 is: 102,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,271.96 : 172,882.37 = 74,314.86 : x
  2. Step 2: Convert to fraction form
    125,271.96/172,882.37 = 74,314.86/x
  3. Step 3: Cross multiply
    125,271.96x = 172,882.37 × 74,314.86
  4. Step 4: Simplify right side
    125,271.96x = 12,847,729,123.02
  5. Step 5: Solve for x
    x = 12,847,729,123.02/125,271.96
  6. Step 6: Final answer
    x = 102,558.70

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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.