Home / 135,359.06-186,792.81-74,929.69

Finding the Fourth Proportional to 135,359.06, 186,792.81 and 74,929.69

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Solution

The fourth proportional to 135,359.06, 186,792.81 and 74,929.69 is: 103,401.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,359.06 : 186,792.81 = 74,929.69 : x
  2. Step 2: Convert to fraction form
    135,359.06/186,792.81 = 74,929.69/x
  3. Step 3: Cross multiply
    135,359.06x = 186,792.81 × 74,929.69
  4. Step 4: Simplify right side
    135,359.06x = 13,996,327,347.53
  5. Step 5: Solve for x
    x = 13,996,327,347.53/135,359.06
  6. Step 6: Final answer
    x = 103,401.48

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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.