Home / 127,280.76-189,990.66-118,029.48

Finding the Fourth Proportional to 127,280.76, 189,990.66 and 118,029.48

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Solution

The fourth proportional to 127,280.76, 189,990.66 and 118,029.48 is: 176,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,280.76 : 189,990.66 = 118,029.48 : x
  2. Step 2: Convert to fraction form
    127,280.76/189,990.66 = 118,029.48/x
  3. Step 3: Cross multiply
    127,280.76x = 189,990.66 × 118,029.48
  4. Step 4: Simplify right side
    127,280.76x = 22,424,498,804.66
  5. Step 5: Solve for x
    x = 22,424,498,804.66/127,280.76
  6. Step 6: Final answer
    x = 176,181.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.