Home / 137,966.13-190,397.75-77,548.41

Finding the Fourth Proportional to 137,966.13, 190,397.75 and 77,548.41

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Solution

The fourth proportional to 137,966.13, 190,397.75 and 77,548.41 is: 107,019.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,966.13 : 190,397.75 = 77,548.41 : x
  2. Step 2: Convert to fraction form
    137,966.13/190,397.75 = 77,548.41/x
  3. Step 3: Cross multiply
    137,966.13x = 190,397.75 × 77,548.41
  4. Step 4: Simplify right side
    137,966.13x = 14,765,042,392.34
  5. Step 5: Solve for x
    x = 14,765,042,392.34/137,966.13
  6. Step 6: Final answer
    x = 107,019.33

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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.