Home / 135,078.63-186,412.22-74,653.18

Finding the Fourth Proportional to 135,078.63, 186,412.22 and 74,653.18

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Solution

The fourth proportional to 135,078.63, 186,412.22 and 74,653.18 is: 103,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,078.63 : 186,412.22 = 74,653.18 : x
  2. Step 2: Convert to fraction form
    135,078.63/186,412.22 = 74,653.18/x
  3. Step 3: Cross multiply
    135,078.63x = 186,412.22 × 74,653.18
  4. Step 4: Simplify right side
    135,078.63x = 13,916,265,013.86
  5. Step 5: Solve for x
    x = 13,916,265,013.86/135,078.63
  6. Step 6: Final answer
    x = 103,023.44

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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.