Home / 203,795.74-305,746.46-77,438.17

Finding the Fourth Proportional to 203,795.74, 305,746.46 and 77,438.17

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Solution

The fourth proportional to 203,795.74, 305,746.46 and 77,438.17 is: 116,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,795.74 : 305,746.46 = 77,438.17 : x
  2. Step 2: Convert to fraction form
    203,795.74/305,746.46 = 77,438.17/x
  3. Step 3: Cross multiply
    203,795.74x = 305,746.46 × 77,438.17
  4. Step 4: Simplify right side
    203,795.74x = 23,676,445,775.61
  5. Step 5: Solve for x
    x = 23,676,445,775.61/203,795.74
  6. Step 6: Final answer
    x = 116,177.34

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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.