Home / 162,539.92-243,588.43-78,293.95

Finding the Fourth Proportional to 162,539.92, 243,588.43 and 78,293.95

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Solution

The fourth proportional to 162,539.92, 243,588.43 and 78,293.95 is: 117,334.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,539.92 : 243,588.43 = 78,293.95 : x
  2. Step 2: Convert to fraction form
    162,539.92/243,588.43 = 78,293.95/x
  3. Step 3: Cross multiply
    162,539.92x = 243,588.43 × 78,293.95
  4. Step 4: Simplify right side
    162,539.92x = 19,071,500,359.00
  5. Step 5: Solve for x
    x = 19,071,500,359.00/162,539.92
  6. Step 6: Final answer
    x = 117,334.25

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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.