Home / 127,975.22-191,962.80-68,729.40

Finding the Fourth Proportional to 127,975.22, 191,962.80 and 68,729.40

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Solution

The fourth proportional to 127,975.22, 191,962.80 and 68,729.40 is: 103,094.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,975.22 : 191,962.80 = 68,729.40 : x
  2. Step 2: Convert to fraction form
    127,975.22/191,962.80 = 68,729.40/x
  3. Step 3: Cross multiply
    127,975.22x = 191,962.80 × 68,729.40
  4. Step 4: Simplify right side
    127,975.22x = 13,193,488,066.32
  5. Step 5: Solve for x
    x = 13,193,488,066.32/127,975.22
  6. Step 6: Final answer
    x = 103,094.08

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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.