Home / 123,421.67-185,113.60-39,170.91

Finding the Fourth Proportional to 123,421.67, 185,113.60 and 39,170.91

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Solution

The fourth proportional to 123,421.67, 185,113.60 and 39,170.91 is: 58,750.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,421.67 : 185,113.60 = 39,170.91 : x
  2. Step 2: Convert to fraction form
    123,421.67/185,113.60 = 39,170.91/x
  3. Step 3: Cross multiply
    123,421.67x = 185,113.60 × 39,170.91
  4. Step 4: Simplify right side
    123,421.67x = 7,251,068,530.23
  5. Step 5: Solve for x
    x = 7,251,068,530.23/123,421.67
  6. Step 6: Final answer
    x = 58,750.37

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1.5x scale

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.