Home / 158,317.47-218,483.06-86,704.29

Finding the Fourth Proportional to 158,317.47, 218,483.06 and 86,704.29

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Solution

The fourth proportional to 158,317.47, 218,483.06 and 86,704.29 is: 119,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,317.47 : 218,483.06 = 86,704.29 : x
  2. Step 2: Convert to fraction form
    158,317.47/218,483.06 = 86,704.29/x
  3. Step 3: Cross multiply
    158,317.47x = 218,483.06 × 86,704.29
  4. Step 4: Simplify right side
    158,317.47x = 18,943,418,160.81
  5. Step 5: Solve for x
    x = 18,943,418,160.81/158,317.47
  6. Step 6: Final answer
    x = 119,654.63

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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.