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Finding the Fourth Proportional to 136,038.29, 187,736.03 and 75,611.48

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Solution

The fourth proportional to 136,038.29, 187,736.03 and 75,611.48 is: 104,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,038.29 : 187,736.03 = 75,611.48 : x
  2. Step 2: Convert to fraction form
    136,038.29/187,736.03 = 75,611.48/x
  3. Step 3: Cross multiply
    136,038.29x = 187,736.03 × 75,611.48
  4. Step 4: Simplify right side
    136,038.29x = 14,194,997,760.89
  5. Step 5: Solve for x
    x = 14,194,997,760.89/136,038.29
  6. Step 6: Final answer
    x = 104,345.61

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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.