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Finding the Fourth Proportional to 161,152, 241,494.40 and 90,881.92

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Solution

The fourth proportional to 161,152, 241,494.40 and 90,881.92 is: 136,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,152 : 241,494.40 = 90,881.92 : x
  2. Step 2: Convert to fraction form
    161,152/241,494.40 = 90,881.92/x
  3. Step 3: Cross multiply
    161,152x = 241,494.40 × 90,881.92
  4. Step 4: Simplify right side
    161,152x = 21,947,474,741.25
  5. Step 5: Solve for x
    x = 21,947,474,741.25/161,152
  6. Step 6: Final answer
    x = 136,191.14

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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.