Home / 161,400.12-242,100.20-43,071.88

Finding the Fourth Proportional to 161,400.12, 242,100.20 and 43,071.88

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Solution

The fourth proportional to 161,400.12, 242,100.20 and 43,071.88 is: 64,607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,400.12 : 242,100.20 = 43,071.88 : x
  2. Step 2: Convert to fraction form
    161,400.12/242,100.20 = 43,071.88/x
  3. Step 3: Cross multiply
    161,400.12x = 242,100.20 × 43,071.88
  4. Step 4: Simplify right side
    161,400.12x = 10,427,710,762.38
  5. Step 5: Solve for x
    x = 10,427,710,762.38/161,400.12
  6. Step 6: Final answer
    x = 64,607.83

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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.