Home / 138,094.92-190,577.88-77,684.58

Finding the Fourth Proportional to 138,094.92, 190,577.88 and 77,684.58

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Solution

The fourth proportional to 138,094.92, 190,577.88 and 77,684.58 is: 107,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,094.92 : 190,577.88 = 77,684.58 : x
  2. Step 2: Convert to fraction form
    138,094.92/190,577.88 = 77,684.58/x
  3. Step 3: Cross multiply
    138,094.92x = 190,577.88 × 77,684.58
  4. Step 4: Simplify right side
    138,094.92x = 14,804,962,565.09
  5. Step 5: Solve for x
    x = 14,804,962,565.09/138,094.92
  6. Step 6: Final answer
    x = 107,208.60

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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.