Home / 117,922.56-176,828.16-42,989.76

Finding the Fourth Proportional to 117,922.56, 176,828.16 and 42,989.76

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Solution

The fourth proportional to 117,922.56, 176,828.16 and 42,989.76 is: 64,464.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,922.56 : 176,828.16 = 42,989.76 : x
  2. Step 2: Convert to fraction form
    117,922.56/176,828.16 = 42,989.76/x
  3. Step 3: Cross multiply
    117,922.56x = 176,828.16 × 42,989.76
  4. Step 4: Simplify right side
    117,922.56x = 7,601,800,159.64
  5. Step 5: Solve for x
    x = 7,601,800,159.64/117,922.56
  6. Step 6: Final answer
    x = 64,464.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.