Home / 127,242.76-190,862.93-77,336.64

Finding the Fourth Proportional to 127,242.76, 190,862.93 and 77,336.64

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Solution

The fourth proportional to 127,242.76, 190,862.93 and 77,336.64 is: 116,004.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,242.76 : 190,862.93 = 77,336.64 : x
  2. Step 2: Convert to fraction form
    127,242.76/190,862.93 = 77,336.64/x
  3. Step 3: Cross multiply
    127,242.76x = 190,862.93 × 77,336.64
  4. Step 4: Simplify right side
    127,242.76x = 14,760,696,365.76
  5. Step 5: Solve for x
    x = 14,760,696,365.76/127,242.76
  6. Step 6: Final answer
    x = 116,004.21

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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.