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Finding the Fourth Proportional to 134,894.40, 202,341.60 and 127,636.80

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Solution

The fourth proportional to 134,894.40, 202,341.60 and 127,636.80 is: 191,455.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,894.40 : 202,341.60 = 127,636.80 : x
  2. Step 2: Convert to fraction form
    134,894.40/202,341.60 = 127,636.80/x
  3. Step 3: Cross multiply
    134,894.40x = 202,341.60 × 127,636.80
  4. Step 4: Simplify right side
    134,894.40x = 25,826,234,330.88
  5. Step 5: Solve for x
    x = 25,826,234,330.88/134,894.40
  6. Step 6: Final answer
    x = 191,455.20

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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.