Home / 129,106.08-193,713.84-118,772.64

Finding the Fourth Proportional to 129,106.08, 193,713.84 and 118,772.64

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Solution

The fourth proportional to 129,106.08, 193,713.84 and 118,772.64 is: 178,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,106.08 : 193,713.84 = 118,772.64 : x
  2. Step 2: Convert to fraction form
    129,106.08/193,713.84 = 118,772.64/x
  3. Step 3: Cross multiply
    129,106.08x = 193,713.84 × 118,772.64
  4. Step 4: Simplify right side
    129,106.08x = 23,007,904,181.34
  5. Step 5: Solve for x
    x = 23,007,904,181.34/129,106.08
  6. Step 6: Final answer
    x = 178,209.30

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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.