Home / 161,427.60-242,141.40-102,378.60

Finding the Fourth Proportional to 161,427.60, 242,141.40 and 102,378.60

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Solution

The fourth proportional to 161,427.60, 242,141.40 and 102,378.60 is: 153,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,427.60 : 242,141.40 = 102,378.60 : x
  2. Step 2: Convert to fraction form
    161,427.60/242,141.40 = 102,378.60/x
  3. Step 3: Cross multiply
    161,427.60x = 242,141.40 × 102,378.60
  4. Step 4: Simplify right side
    161,427.60x = 24,790,097,534.04
  5. Step 5: Solve for x
    x = 24,790,097,534.04/161,427.60
  6. Step 6: Final answer
    x = 153,567.90

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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.