Home / 116,905.64-161,341.35-70,961.66

Finding the Fourth Proportional to 116,905.64, 161,341.35 and 70,961.66

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Solution

The fourth proportional to 116,905.64, 161,341.35 and 70,961.66 is: 97,934.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,905.64 : 161,341.35 = 70,961.66 : x
  2. Step 2: Convert to fraction form
    116,905.64/161,341.35 = 70,961.66/x
  3. Step 3: Cross multiply
    116,905.64x = 161,341.35 × 70,961.66
  4. Step 4: Simplify right side
    116,905.64x = 11,449,049,215.93
  5. Step 5: Solve for x
    x = 11,449,049,215.93/116,905.64
  6. Step 6: Final answer
    x = 97,934.11

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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.