Home / 137,734.32-190,091.88-77,308.26

Finding the Fourth Proportional to 137,734.32, 190,091.88 and 77,308.26

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Solution

The fourth proportional to 137,734.32, 190,091.88 and 77,308.26 is: 106,695.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,734.32 : 190,091.88 = 77,308.26 : x
  2. Step 2: Convert to fraction form
    137,734.32/190,091.88 = 77,308.26/x
  3. Step 3: Cross multiply
    137,734.32x = 190,091.88 × 77,308.26
  4. Step 4: Simplify right side
    137,734.32x = 14,695,671,770.08
  5. Step 5: Solve for x
    x = 14,695,671,770.08/137,734.32
  6. Step 6: Final answer
    x = 106,695.78

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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.