Home / 135,009.03-186,314.02-74,578.42

Finding the Fourth Proportional to 135,009.03, 186,314.02 and 74,578.42

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Solution

The fourth proportional to 135,009.03, 186,314.02 and 74,578.42 is: 102,919.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,009.03 : 186,314.02 = 74,578.42 : x
  2. Step 2: Convert to fraction form
    135,009.03/186,314.02 = 74,578.42/x
  3. Step 3: Cross multiply
    135,009.03x = 186,314.02 × 74,578.42
  4. Step 4: Simplify right side
    135,009.03x = 13,895,005,701.40
  5. Step 5: Solve for x
    x = 13,895,005,701.40/135,009.03
  6. Step 6: Final answer
    x = 102,919.09

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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.