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Finding the Fourth Proportional to 123,487.86, 185,210.33 and 34,720.30

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Solution

The fourth proportional to 123,487.86, 185,210.33 and 34,720.30 is: 52,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,487.86 : 185,210.33 = 34,720.30 : x
  2. Step 2: Convert to fraction form
    123,487.86/185,210.33 = 34,720.30/x
  3. Step 3: Cross multiply
    123,487.86x = 185,210.33 × 34,720.30
  4. Step 4: Simplify right side
    123,487.86x = 6,430,557,584.07
  5. Step 5: Solve for x
    x = 6,430,557,584.07/123,487.86
  6. Step 6: Final answer
    x = 52,074.41

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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.