Home / 117,009.45-161,421.75-68,586.83

Finding the Fourth Proportional to 117,009.45, 161,421.75 and 68,586.83

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Solution

The fourth proportional to 117,009.45, 161,421.75 and 68,586.83 is: 94,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,009.45 : 161,421.75 = 68,586.83 : x
  2. Step 2: Convert to fraction form
    117,009.45/161,421.75 = 68,586.83/x
  3. Step 3: Cross multiply
    117,009.45x = 161,421.75 × 68,586.83
  4. Step 4: Simplify right side
    117,009.45x = 11,071,406,125.55
  5. Step 5: Solve for x
    x = 11,071,406,125.55/117,009.45
  6. Step 6: Final answer
    x = 94,619.76

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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.