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Finding the Fourth Proportional to 162,558.80, 243,643.80 and 83,632.40

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Solution

The fourth proportional to 162,558.80, 243,643.80 and 83,632.40 is: 125,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,558.80 : 243,643.80 = 83,632.40 : x
  2. Step 2: Convert to fraction form
    162,558.80/243,643.80 = 83,632.40/x
  3. Step 3: Cross multiply
    162,558.80x = 243,643.80 × 83,632.40
  4. Step 4: Simplify right side
    162,558.80x = 20,376,515,739.12
  5. Step 5: Solve for x
    x = 20,376,515,739.12/162,558.80
  6. Step 6: Final answer
    x = 125,348.59

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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.