Home / 131,854.64-181,783.20-109,109.84

Finding the Fourth Proportional to 131,854.64, 181,783.20 and 109,109.84

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Solution

The fourth proportional to 131,854.64, 181,783.20 and 109,109.84 is: 150,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,854.64 : 181,783.20 = 109,109.84 : x
  2. Step 2: Convert to fraction form
    131,854.64/181,783.20 = 109,109.84/x
  3. Step 3: Cross multiply
    131,854.64x = 181,783.20 × 109,109.84
  4. Step 4: Simplify right side
    131,854.64x = 19,834,335,866.69
  5. Step 5: Solve for x
    x = 19,834,335,866.69/131,854.64
  6. Step 6: Final answer
    x = 150,425.77

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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.