Home / 144,047.20-198,795.18-80,386.08

Finding the Fourth Proportional to 144,047.20, 198,795.18 and 80,386.08

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Solution

The fourth proportional to 144,047.20, 198,795.18 and 80,386.08 is: 110,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,047.20 : 198,795.18 = 80,386.08 : x
  2. Step 2: Convert to fraction form
    144,047.20/198,795.18 = 80,386.08/x
  3. Step 3: Cross multiply
    144,047.20x = 198,795.18 × 80,386.08
  4. Step 4: Simplify right side
    144,047.20x = 15,980,365,243.09
  5. Step 5: Solve for x
    x = 15,980,365,243.09/144,047.20
  6. Step 6: Final answer
    x = 110,938.40

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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.