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Finding the Fourth Proportional to 124,855.67, 187,259.07 and 103,930.13

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Solution

The fourth proportional to 124,855.67, 187,259.07 and 103,930.13 is: 155,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,855.67 : 187,259.07 = 103,930.13 : x
  2. Step 2: Convert to fraction form
    124,855.67/187,259.07 = 103,930.13/x
  3. Step 3: Cross multiply
    124,855.67x = 187,259.07 × 103,930.13
  4. Step 4: Simplify right side
    124,855.67x = 19,461,860,346.66
  5. Step 5: Solve for x
    x = 19,461,860,346.66/124,855.67
  6. Step 6: Final answer
    x = 155,874.86

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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.