Home / 118,427.82-163,428.44-64,711.68

Finding the Fourth Proportional to 118,427.82, 163,428.44 and 64,711.68

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Solution

The fourth proportional to 118,427.82, 163,428.44 and 64,711.68 is: 89,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,427.82 : 163,428.44 = 64,711.68 : x
  2. Step 2: Convert to fraction form
    118,427.82/163,428.44 = 64,711.68/x
  3. Step 3: Cross multiply
    118,427.82x = 163,428.44 × 64,711.68
  4. Step 4: Simplify right side
    118,427.82x = 10,575,729,354.69
  5. Step 5: Solve for x
    x = 10,575,729,354.69/118,427.82
  6. Step 6: Final answer
    x = 89,301.05

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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.