Home / 135,040.06-186,345.92-74,610.21

Finding the Fourth Proportional to 135,040.06, 186,345.92 and 74,610.21

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Solution

The fourth proportional to 135,040.06, 186,345.92 and 74,610.21 is: 102,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,040.06 : 186,345.92 = 74,610.21 : x
  2. Step 2: Convert to fraction form
    135,040.06/186,345.92 = 74,610.21/x
  3. Step 3: Cross multiply
    135,040.06x = 186,345.92 × 74,610.21
  4. Step 4: Simplify right side
    135,040.06x = 13,903,308,689.48
  5. Step 5: Solve for x
    x = 13,903,308,689.48/135,040.06
  6. Step 6: Final answer
    x = 102,956.92

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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.