Home / 229,099.32-316,131.66-127,121.40

Finding the Fourth Proportional to 229,099.32, 316,131.66 and 127,121.40

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Solution

The fourth proportional to 229,099.32, 316,131.66 and 127,121.40 is: 175,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,099.32 : 316,131.66 = 127,121.40 : x
  2. Step 2: Convert to fraction form
    229,099.32/316,131.66 = 127,121.40/x
  3. Step 3: Cross multiply
    229,099.32x = 316,131.66 × 127,121.40
  4. Step 4: Simplify right side
    229,099.32x = 40,187,099,203.52
  5. Step 5: Solve for x
    x = 40,187,099,203.52/229,099.32
  6. Step 6: Final answer
    x = 175,413.44

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1.5x scale

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.