Home / 259,746.40-389,538.60-102,023.20

Finding the Fourth Proportional to 259,746.40, 389,538.60 and 102,023.20

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Solution

The fourth proportional to 259,746.40, 389,538.60 and 102,023.20 is: 153,002.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,746.40 : 389,538.60 = 102,023.20 : x
  2. Step 2: Convert to fraction form
    259,746.40/389,538.60 = 102,023.20/x
  3. Step 3: Cross multiply
    259,746.40x = 389,538.60 × 102,023.20
  4. Step 4: Simplify right side
    259,746.40x = 39,741,974,495.52
  5. Step 5: Solve for x
    x = 39,741,974,495.52/259,746.40
  6. Step 6: Final answer
    x = 153,002.98

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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.