Home / 161,949.60-223,030.80-139,122.72

Finding the Fourth Proportional to 161,949.60, 223,030.80 and 139,122.72

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Solution

The fourth proportional to 161,949.60, 223,030.80 and 139,122.72 is: 191,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,949.60 : 223,030.80 = 139,122.72 : x
  2. Step 2: Convert to fraction form
    161,949.60/223,030.80 = 139,122.72/x
  3. Step 3: Cross multiply
    161,949.60x = 223,030.80 × 139,122.72
  4. Step 4: Simplify right side
    161,949.60x = 31,028,651,539.78
  5. Step 5: Solve for x
    x = 31,028,651,539.78/161,949.60
  6. Step 6: Final answer
    x = 191,594.49

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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.