Home / 115,202.12-158,980.68-64,213.43

Finding the Fourth Proportional to 115,202.12, 158,980.68 and 64,213.43

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Solution

The fourth proportional to 115,202.12, 158,980.68 and 64,213.43 is: 88,615.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,202.12 : 158,980.68 = 64,213.43 : x
  2. Step 2: Convert to fraction form
    115,202.12/158,980.68 = 64,213.43/x
  3. Step 3: Cross multiply
    115,202.12x = 158,980.68 × 64,213.43
  4. Step 4: Simplify right side
    115,202.12x = 10,208,693,971.63
  5. Step 5: Solve for x
    x = 10,208,693,971.63/115,202.12
  6. Step 6: Final answer
    x = 88,615.51

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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.