Home / 135,035.21-186,332.71-74,602.25

Finding the Fourth Proportional to 135,035.21, 186,332.71 and 74,602.25

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Solution

The fourth proportional to 135,035.21, 186,332.71 and 74,602.25 is: 102,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,035.21 : 186,332.71 = 74,602.25 : x
  2. Step 2: Convert to fraction form
    135,035.21/186,332.71 = 74,602.25/x
  3. Step 3: Cross multiply
    135,035.21x = 186,332.71 × 74,602.25
  4. Step 4: Simplify right side
    135,035.21x = 13,900,840,209.65
  5. Step 5: Solve for x
    x = 13,900,840,209.65/135,035.21
  6. Step 6: Final answer
    x = 102,942.33

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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.