Home / 102,166.40-153,255.36-31,091.35

Finding the Fourth Proportional to 102,166.40, 153,255.36 and 31,091.35

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Solution

The fourth proportional to 102,166.40, 153,255.36 and 31,091.35 is: 46,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,166.40 : 153,255.36 = 31,091.35 : x
  2. Step 2: Convert to fraction form
    102,166.40/153,255.36 = 31,091.35/x
  3. Step 3: Cross multiply
    102,166.40x = 153,255.36 × 31,091.35
  4. Step 4: Simplify right side
    102,166.40x = 4,764,916,314.09
  5. Step 5: Solve for x
    x = 4,764,916,314.09/102,166.40
  6. Step 6: Final answer
    x = 46,638.78

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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.