Home / 135,158.39-186,511.04-74,725.50

Finding the Fourth Proportional to 135,158.39, 186,511.04 and 74,725.50

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Solution

The fourth proportional to 135,158.39, 186,511.04 and 74,725.50 is: 103,117.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,158.39 : 186,511.04 = 74,725.50 : x
  2. Step 2: Convert to fraction form
    135,158.39/186,511.04 = 74,725.50/x
  3. Step 3: Cross multiply
    135,158.39x = 186,511.04 × 74,725.50
  4. Step 4: Simplify right side
    135,158.39x = 13,937,131,325.53
  5. Step 5: Solve for x
    x = 13,937,131,325.53/135,158.39
  6. Step 6: Final answer
    x = 103,117.03

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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.