Home / 283,579.11-391,335.93-161,070.66

Finding the Fourth Proportional to 283,579.11, 391,335.93 and 161,070.66

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Solution

The fourth proportional to 283,579.11, 391,335.93 and 161,070.66 is: 222,275.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,579.11 : 391,335.93 = 161,070.66 : x
  2. Step 2: Convert to fraction form
    283,579.11/391,335.93 = 161,070.66/x
  3. Step 3: Cross multiply
    283,579.11x = 391,335.93 × 161,070.66
  4. Step 4: Simplify right side
    283,579.11x = 63,032,736,526.81
  5. Step 5: Solve for x
    x = 63,032,736,526.81/283,579.11
  6. Step 6: Final answer
    x = 222,275.67

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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.