Home / 127,127.81-190,722.54-38,376.01

Finding the Fourth Proportional to 127,127.81, 190,722.54 and 38,376.01

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Solution

The fourth proportional to 127,127.81, 190,722.54 and 38,376.01 is: 57,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,127.81 : 190,722.54 = 38,376.01 : x
  2. Step 2: Convert to fraction form
    127,127.81/190,722.54 = 38,376.01/x
  3. Step 3: Cross multiply
    127,127.81x = 190,722.54 × 38,376.01
  4. Step 4: Simplify right side
    127,127.81x = 7,319,170,102.27
  5. Step 5: Solve for x
    x = 7,319,170,102.27/127,127.81
  6. Step 6: Final answer
    x = 57,573.32

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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.