Home / 117,688.59-162,298.62-90,788.49

Finding the Fourth Proportional to 117,688.59, 162,298.62 and 90,788.49

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Solution

The fourth proportional to 117,688.59, 162,298.62 and 90,788.49 is: 125,202.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,688.59 : 162,298.62 = 90,788.49 : x
  2. Step 2: Convert to fraction form
    117,688.59/162,298.62 = 90,788.49/x
  3. Step 3: Cross multiply
    117,688.59x = 162,298.62 × 90,788.49
  4. Step 4: Simplify right side
    117,688.59x = 14,734,846,638.88
  5. Step 5: Solve for x
    x = 14,734,846,638.88/117,688.59
  6. Step 6: Final answer
    x = 125,202.00

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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.