Home / 144,316.90-199,157.63-80,654.70

Finding the Fourth Proportional to 144,316.90, 199,157.63 and 80,654.70

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Solution

The fourth proportional to 144,316.90, 199,157.63 and 80,654.70 is: 111,303.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,316.90 : 199,157.63 = 80,654.70 : x
  2. Step 2: Convert to fraction form
    144,316.90/199,157.63 = 80,654.70/x
  3. Step 3: Cross multiply
    144,316.90x = 199,157.63 × 80,654.70
  4. Step 4: Simplify right side
    144,316.90x = 16,062,999,243.93
  5. Step 5: Solve for x
    x = 16,062,999,243.93/144,316.90
  6. Step 6: Final answer
    x = 111,303.66

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1.5x scale

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.