Home / 115,825.34-159,841.68-64,836.80

Finding the Fourth Proportional to 115,825.34, 159,841.68 and 64,836.80

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Solution

The fourth proportional to 115,825.34, 159,841.68 and 64,836.80 is: 89,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,825.34 : 159,841.68 = 64,836.80 : x
  2. Step 2: Convert to fraction form
    115,825.34/159,841.68 = 64,836.80/x
  3. Step 3: Cross multiply
    115,825.34x = 159,841.68 × 64,836.80
  4. Step 4: Simplify right side
    115,825.34x = 10,363,623,676.35
  5. Step 5: Solve for x
    x = 10,363,623,676.35/115,825.34
  6. Step 6: Final answer
    x = 89,476.31

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1.5x scale

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.