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Finding the Fourth Proportional to 161,671.60, 223,095.36 and 89,071.30

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Solution

The fourth proportional to 161,671.60, 223,095.36 and 89,071.30 is: 122,912.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,671.60 : 223,095.36 = 89,071.30 : x
  2. Step 2: Convert to fraction form
    161,671.60/223,095.36 = 89,071.30/x
  3. Step 3: Cross multiply
    161,671.60x = 223,095.36 × 89,071.30
  4. Step 4: Simplify right side
    161,671.60x = 19,871,393,739.17
  5. Step 5: Solve for x
    x = 19,871,393,739.17/161,671.60
  6. Step 6: Final answer
    x = 122,912.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.