Home / 170,640.30-235,440.42-102,635.40

Finding the Fourth Proportional to 170,640.30, 235,440.42 and 102,635.40

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Solution

The fourth proportional to 170,640.30, 235,440.42 and 102,635.40 is: 141,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,640.30 : 235,440.42 = 102,635.40 : x
  2. Step 2: Convert to fraction form
    170,640.30/235,440.42 = 102,635.40/x
  3. Step 3: Cross multiply
    170,640.30x = 235,440.42 × 102,635.40
  4. Step 4: Simplify right side
    170,640.30x = 24,164,521,682.87
  5. Step 5: Solve for x
    x = 24,164,521,682.87/170,640.30
  6. Step 6: Final answer
    x = 141,610.87

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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.