Home / 117,533.23-161,925.18-81,199.87

Finding the Fourth Proportional to 117,533.23, 161,925.18 and 81,199.87

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Solution

The fourth proportional to 117,533.23, 161,925.18 and 81,199.87 is: 111,868.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,533.23 : 161,925.18 = 81,199.87 : x
  2. Step 2: Convert to fraction form
    117,533.23/161,925.18 = 81,199.87/x
  3. Step 3: Cross multiply
    117,533.23x = 161,925.18 × 81,199.87
  4. Step 4: Simplify right side
    117,533.23x = 13,148,302,856.41
  5. Step 5: Solve for x
    x = 13,148,302,856.41/117,533.23
  6. Step 6: Final answer
    x = 111,868.81

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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.