Home / 109,731.42-151,427.54-61,334.48

Finding the Fourth Proportional to 109,731.42, 151,427.54 and 61,334.48

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Solution

The fourth proportional to 109,731.42, 151,427.54 and 61,334.48 is: 84,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,731.42 : 151,427.54 = 61,334.48 : x
  2. Step 2: Convert to fraction form
    109,731.42/151,427.54 = 61,334.48/x
  3. Step 3: Cross multiply
    109,731.42x = 151,427.54 × 61,334.48
  4. Step 4: Simplify right side
    109,731.42x = 9,287,729,423.58
  5. Step 5: Solve for x
    x = 9,287,729,423.58/109,731.42
  6. Step 6: Final answer
    x = 84,640.57

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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.