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Finding the Fourth Proportional to 136,085.88, 187,798.26 and 75,662.10

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Solution

The fourth proportional to 136,085.88, 187,798.26 and 75,662.10 is: 104,413.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,085.88 : 187,798.26 = 75,662.10 : x
  2. Step 2: Convert to fraction form
    136,085.88/187,798.26 = 75,662.10/x
  3. Step 3: Cross multiply
    136,085.88x = 187,798.26 × 75,662.10
  4. Step 4: Simplify right side
    136,085.88x = 14,209,210,727.95
  5. Step 5: Solve for x
    x = 14,209,210,727.95/136,085.88
  6. Step 6: Final answer
    x = 104,413.56

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1.5x scale

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.