Home / 102,023.24-140,447.40-84,089.84

Finding the Fourth Proportional to 102,023.24, 140,447.40 and 84,089.84

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Solution

The fourth proportional to 102,023.24, 140,447.40 and 84,089.84 is: 115,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,023.24 : 140,447.40 = 84,089.84 : x
  2. Step 2: Convert to fraction form
    102,023.24/140,447.40 = 84,089.84/x
  3. Step 3: Cross multiply
    102,023.24x = 140,447.40 × 84,089.84
  4. Step 4: Simplify right side
    102,023.24x = 11,810,199,394.42
  5. Step 5: Solve for x
    x = 11,810,199,394.42/102,023.24
  6. Step 6: Final answer
    x = 115,759.89

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1.5x scale

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.