Home / 137,727.44-190,066.20-76,472

Finding the Fourth Proportional to 137,727.44, 190,066.20 and 76,472

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Solution

The fourth proportional to 137,727.44, 190,066.20 and 76,472 is: 105,532.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,727.44 : 190,066.20 = 76,472 : x
  2. Step 2: Convert to fraction form
    137,727.44/190,066.20 = 76,472/x
  3. Step 3: Cross multiply
    137,727.44x = 190,066.20 × 76,472
  4. Step 4: Simplify right side
    137,727.44x = 14,534,742,446.40
  5. Step 5: Solve for x
    x = 14,534,742,446.40/137,727.44
  6. Step 6: Final answer
    x = 105,532.66

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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.