Home / 109,820.54-151,551.24-61,421.96

Finding the Fourth Proportional to 109,820.54, 151,551.24 and 61,421.96

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Solution

The fourth proportional to 109,820.54, 151,551.24 and 61,421.96 is: 84,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,820.54 : 151,551.24 = 61,421.96 : x
  2. Step 2: Convert to fraction form
    109,820.54/151,551.24 = 61,421.96/x
  3. Step 3: Cross multiply
    109,820.54x = 151,551.24 × 61,421.96
  4. Step 4: Simplify right side
    109,820.54x = 9,308,574,201.23
  5. Step 5: Solve for x
    x = 9,308,574,201.23/109,820.54
  6. Step 6: Final answer
    x = 84,761.69

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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.