Home / 109,731.18-151,427.20-61,334.23

Finding the Fourth Proportional to 109,731.18, 151,427.20 and 61,334.23

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Solution

The fourth proportional to 109,731.18, 151,427.20 and 61,334.23 is: 84,640.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,731.18 : 151,427.20 = 61,334.23 : x
  2. Step 2: Convert to fraction form
    109,731.18/151,427.20 = 61,334.23/x
  3. Step 3: Cross multiply
    109,731.18x = 151,427.20 × 61,334.23
  4. Step 4: Simplify right side
    109,731.18x = 9,287,670,713.06
  5. Step 5: Solve for x
    x = 9,287,670,713.06/109,731.18
  6. Step 6: Final answer
    x = 84,640.22

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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.