Home / 165,913.80-248,928.30-72,448.20

Finding the Fourth Proportional to 165,913.80, 248,928.30 and 72,448.20

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Solution

The fourth proportional to 165,913.80, 248,928.30 and 72,448.20 is: 108,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,913.80 : 248,928.30 = 72,448.20 : x
  2. Step 2: Convert to fraction form
    165,913.80/248,928.30 = 72,448.20/x
  3. Step 3: Cross multiply
    165,913.80x = 248,928.30 × 72,448.20
  4. Step 4: Simplify right side
    165,913.80x = 18,034,407,264.06
  5. Step 5: Solve for x
    x = 18,034,407,264.06/165,913.80
  6. Step 6: Final answer
    x = 108,697.45

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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.