Home / 189,702.26-261,785.94-103,659.35

Finding the Fourth Proportional to 189,702.26, 261,785.94 and 103,659.35

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Solution

The fourth proportional to 189,702.26, 261,785.94 and 103,659.35 is: 143,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,702.26 : 261,785.94 = 103,659.35 : x
  2. Step 2: Convert to fraction form
    189,702.26/261,785.94 = 103,659.35/x
  3. Step 3: Cross multiply
    189,702.26x = 261,785.94 × 103,659.35
  4. Step 4: Simplify right side
    189,702.26x = 27,136,559,070.61
  5. Step 5: Solve for x
    x = 27,136,559,070.61/189,702.26
  6. Step 6: Final answer
    x = 143,048.16

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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.