Home / 142,766.40-197,113.86-127,610.49

Finding the Fourth Proportional to 142,766.40, 197,113.86 and 127,610.49

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Solution

The fourth proportional to 142,766.40, 197,113.86 and 127,610.49 is: 176,188.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,766.40 : 197,113.86 = 127,610.49 : x
  2. Step 2: Convert to fraction form
    142,766.40/197,113.86 = 127,610.49/x
  3. Step 3: Cross multiply
    142,766.40x = 197,113.86 × 127,610.49
  4. Step 4: Simplify right side
    142,766.40x = 25,153,796,260.39
  5. Step 5: Solve for x
    x = 25,153,796,260.39/142,766.40
  6. Step 6: Final answer
    x = 176,188.49

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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.