Home / 119,280.20-164,538.03-71,505.79

Finding the Fourth Proportional to 119,280.20, 164,538.03 and 71,505.79

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Solution

The fourth proportional to 119,280.20, 164,538.03 and 71,505.79 is: 98,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,280.20 : 164,538.03 = 71,505.79 : x
  2. Step 2: Convert to fraction form
    119,280.20/164,538.03 = 71,505.79/x
  3. Step 3: Cross multiply
    119,280.20x = 164,538.03 × 71,505.79
  4. Step 4: Simplify right side
    119,280.20x = 11,765,421,677.00
  5. Step 5: Solve for x
    x = 11,765,421,677.00/119,280.20
  6. Step 6: Final answer
    x = 98,636.84

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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.