Home / 139,968,191.20-209,952,286.80-96,319,170.40

Finding the Fourth Proportional to 139,968,191.20, 209,952,286.80 and 96,319,170.40

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Solution

The fourth proportional to 139,968,191.20, 209,952,286.80 and 96,319,170.40 is: 144,478,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,191.20 : 209,952,286.80 = 96,319,170.40 : x
  2. Step 2: Convert to fraction form
    139,968,191.20/209,952,286.80 = 96,319,170.40/x
  3. Step 3: Cross multiply
    139,968,191.20x = 209,952,286.80 × 96,319,170.40
  4. Step 4: Simplify right side
    139,968,191.20x = 20,222,430,088,158,872
  5. Step 5: Solve for x
    x = 20,222,430,088,158,872/139,968,191.20
  6. Step 6: Final answer
    x = 144,478,755.60

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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.