Home / 135,033.84-186,344.10-74,607.12

Finding the Fourth Proportional to 135,033.84, 186,344.10 and 74,607.12

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Solution

The fourth proportional to 135,033.84, 186,344.10 and 74,607.12 is: 102,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,033.84 : 186,344.10 = 74,607.12 : x
  2. Step 2: Convert to fraction form
    135,033.84/186,344.10 = 74,607.12/x
  3. Step 3: Cross multiply
    135,033.84x = 186,344.10 × 74,607.12
  4. Step 4: Simplify right side
    135,033.84x = 13,902,596,629.99
  5. Step 5: Solve for x
    x = 13,902,596,629.99/135,033.84
  6. Step 6: Final answer
    x = 102,956.39

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1.5x scale

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.