Home / 174,720.80-261,908.40-69,399.20

Finding the Fourth Proportional to 174,720.80, 261,908.40 and 69,399.20

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Solution

The fourth proportional to 174,720.80, 261,908.40 and 69,399.20 is: 104,030.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,720.80 : 261,908.40 = 69,399.20 : x
  2. Step 2: Convert to fraction form
    174,720.80/261,908.40 = 69,399.20/x
  3. Step 3: Cross multiply
    174,720.80x = 261,908.40 × 69,399.20
  4. Step 4: Simplify right side
    174,720.80x = 18,176,233,433.28
  5. Step 5: Solve for x
    x = 18,176,233,433.28/174,720.80
  6. Step 6: Final answer
    x = 104,030.16

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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.