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Finding the Fourth Proportional to 123,702.06, 185,239.07 and 103,658.88

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Solution

The fourth proportional to 123,702.06, 185,239.07 and 103,658.88 is: 155,225.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,702.06 : 185,239.07 = 103,658.88 : x
  2. Step 2: Convert to fraction form
    123,702.06/185,239.07 = 103,658.88/x
  3. Step 3: Cross multiply
    123,702.06x = 185,239.07 × 103,658.88
  4. Step 4: Simplify right side
    123,702.06x = 19,201,674,528.44
  5. Step 5: Solve for x
    x = 19,201,674,528.44/123,702.06
  6. Step 6: Final answer
    x = 155,225.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.