Home / 135,276.08-186,678.53-74,846.72

Finding the Fourth Proportional to 135,276.08, 186,678.53 and 74,846.72

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Solution

The fourth proportional to 135,276.08, 186,678.53 and 74,846.72 is: 103,287.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,276.08 : 186,678.53 = 74,846.72 : x
  2. Step 2: Convert to fraction form
    135,276.08/186,678.53 = 74,846.72/x
  3. Step 3: Cross multiply
    135,276.08x = 186,678.53 × 74,846.72
  4. Step 4: Simplify right side
    135,276.08x = 13,972,276,318.73
  5. Step 5: Solve for x
    x = 13,972,276,318.73/135,276.08
  6. Step 6: Final answer
    x = 103,287.12

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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.