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Finding the Fourth Proportional to 162,035.80, 242,664.90 and 78,832.60

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Solution

The fourth proportional to 162,035.80, 242,664.90 and 78,832.60 is: 118,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,035.80 : 242,664.90 = 78,832.60 : x
  2. Step 2: Convert to fraction form
    162,035.80/242,664.90 = 78,832.60/x
  3. Step 3: Cross multiply
    162,035.80x = 242,664.90 × 78,832.60
  4. Step 4: Simplify right side
    162,035.80x = 19,129,904,995.74
  5. Step 5: Solve for x
    x = 19,129,904,995.74/162,035.80
  6. Step 6: Final answer
    x = 118,059.74

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1.5x scale

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.