Home / 127,130.28-190,696.80-38,384.52

Finding the Fourth Proportional to 127,130.28, 190,696.80 and 38,384.52

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Solution

The fourth proportional to 127,130.28, 190,696.80 and 38,384.52 is: 57,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,130.28 : 190,696.80 = 38,384.52 : x
  2. Step 2: Convert to fraction form
    127,130.28/190,696.80 = 38,384.52/x
  3. Step 3: Cross multiply
    127,130.28x = 190,696.80 × 38,384.52
  4. Step 4: Simplify right side
    127,130.28x = 7,319,805,133.54
  5. Step 5: Solve for x
    x = 7,319,805,133.54/127,130.28
  6. Step 6: Final answer
    x = 57,577.20

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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.