Home / 243,074.39-335,442.66-134,178.75

Finding the Fourth Proportional to 243,074.39, 335,442.66 and 134,178.75

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Solution

The fourth proportional to 243,074.39, 335,442.66 and 134,178.75 is: 185,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,074.39 : 335,442.66 = 134,178.75 : x
  2. Step 2: Convert to fraction form
    243,074.39/335,442.66 = 134,178.75/x
  3. Step 3: Cross multiply
    243,074.39x = 335,442.66 × 134,178.75
  4. Step 4: Simplify right side
    243,074.39x = 45,009,276,815.48
  5. Step 5: Solve for x
    x = 45,009,276,815.48/243,074.39
  6. Step 6: Final answer
    x = 185,166.68

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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.