Home / 135,068.27-186,389.19-74,637.65

Finding the Fourth Proportional to 135,068.27, 186,389.19 and 74,637.65

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Solution

The fourth proportional to 135,068.27, 186,389.19 and 74,637.65 is: 102,997.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,068.27 : 186,389.19 = 74,637.65 : x
  2. Step 2: Convert to fraction form
    135,068.27/186,389.19 = 74,637.65/x
  3. Step 3: Cross multiply
    135,068.27x = 186,389.19 × 74,637.65
  4. Step 4: Simplify right side
    135,068.27x = 13,911,651,592.98
  5. Step 5: Solve for x
    x = 13,911,651,592.98/135,068.27
  6. Step 6: Final answer
    x = 102,997.19

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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.