Home / 109,629.34-151,288.95-61,883.26

Finding the Fourth Proportional to 109,629.34, 151,288.95 and 61,883.26

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Solution

The fourth proportional to 109,629.34, 151,288.95 and 61,883.26 is: 85,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,629.34 : 151,288.95 = 61,883.26 : x
  2. Step 2: Convert to fraction form
    109,629.34/151,288.95 = 61,883.26/x
  3. Step 3: Cross multiply
    109,629.34x = 151,288.95 × 61,883.26
  4. Step 4: Simplify right side
    109,629.34x = 9,362,253,427.98
  5. Step 5: Solve for x
    x = 9,362,253,427.98/109,629.34
  6. Step 6: Final answer
    x = 85,399.16

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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.