Home / 135,812.48-187,423.28-74,563.72

Finding the Fourth Proportional to 135,812.48, 187,423.28 and 74,563.72

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Solution

The fourth proportional to 135,812.48, 187,423.28 and 74,563.72 is: 102,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,812.48 : 187,423.28 = 74,563.72 : x
  2. Step 2: Convert to fraction form
    135,812.48/187,423.28 = 74,563.72/x
  3. Step 3: Cross multiply
    135,812.48x = 187,423.28 × 74,563.72
  4. Step 4: Simplify right side
    135,812.48x = 13,974,976,971.40
  5. Step 5: Solve for x
    x = 13,974,976,971.40/135,812.48
  6. Step 6: Final answer
    x = 102,899.06

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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.