Home / 163,543.04-245,781.12-80,495.36

Finding the Fourth Proportional to 163,543.04, 245,781.12 and 80,495.36

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Solution

The fourth proportional to 163,543.04, 245,781.12 and 80,495.36 is: 120,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,543.04 : 245,781.12 = 80,495.36 : x
  2. Step 2: Convert to fraction form
    163,543.04/245,781.12 = 80,495.36/x
  3. Step 3: Cross multiply
    163,543.04x = 245,781.12 × 80,495.36
  4. Step 4: Simplify right side
    163,543.04x = 19,784,239,735.60
  5. Step 5: Solve for x
    x = 19,784,239,735.60/163,543.04
  6. Step 6: Final answer
    x = 120,972.68

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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.