Home / 189,702.24-261,785.86-103,659.31

Finding the Fourth Proportional to 189,702.24, 261,785.86 and 103,659.31

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Solution

The fourth proportional to 189,702.24, 261,785.86 and 103,659.31 is: 143,048.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,702.24 : 261,785.86 = 103,659.31 : x
  2. Step 2: Convert to fraction form
    189,702.24/261,785.86 = 103,659.31/x
  3. Step 3: Cross multiply
    189,702.24x = 261,785.86 × 103,659.31
  4. Step 4: Simplify right side
    189,702.24x = 27,136,541,615.36
  5. Step 5: Solve for x
    x = 27,136,541,615.36/189,702.24
  6. Step 6: Final answer
    x = 143,048.08

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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.