Home / 127,121.16-190,743.71-52,263.80

Finding the Fourth Proportional to 127,121.16, 190,743.71 and 52,263.80

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Solution

The fourth proportional to 127,121.16, 190,743.71 and 52,263.80 is: 78,421.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,121.16 : 190,743.71 = 52,263.80 : x
  2. Step 2: Convert to fraction form
    127,121.16/190,743.71 = 52,263.80/x
  3. Step 3: Cross multiply
    127,121.16x = 190,743.71 × 52,263.80
  4. Step 4: Simplify right side
    127,121.16x = 9,968,990,904.93
  5. Step 5: Solve for x
    x = 9,968,990,904.93/127,121.16
  6. Step 6: Final answer
    x = 78,421.17

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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.