Home / 115,860.22-159,900.54-70,564.78

Finding the Fourth Proportional to 115,860.22, 159,900.54 and 70,564.78

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Solution

The fourth proportional to 115,860.22, 159,900.54 and 70,564.78 is: 97,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,860.22 : 159,900.54 = 70,564.78 : x
  2. Step 2: Convert to fraction form
    115,860.22/159,900.54 = 70,564.78/x
  3. Step 3: Cross multiply
    115,860.22x = 159,900.54 × 70,564.78
  4. Step 4: Simplify right side
    115,860.22x = 11,283,346,426.98
  5. Step 5: Solve for x
    x = 11,283,346,426.98/115,860.22
  6. Step 6: Final answer
    x = 97,387.58

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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.