Home / 134,639.60-185,980.12-100,588.92

Finding the Fourth Proportional to 134,639.60, 185,980.12 and 100,588.92

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Solution

The fourth proportional to 134,639.60, 185,980.12 and 100,588.92 is: 138,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,639.60 : 185,980.12 = 100,588.92 : x
  2. Step 2: Convert to fraction form
    134,639.60/185,980.12 = 100,588.92/x
  3. Step 3: Cross multiply
    134,639.60x = 185,980.12 × 100,588.92
  4. Step 4: Simplify right side
    134,639.60x = 18,707,538,463.37
  5. Step 5: Solve for x
    x = 18,707,538,463.37/134,639.60
  6. Step 6: Final answer
    x = 138,945.30

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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.